10-1-79
AN - XXX
MICRO CHROMA 68
THE NEW "BUG"
FROM MOTOROLA
TVBUG®
MOS Microcomputer Systems Applications
Austin, Texas
Prepared By
Tim Ahrens
Jack Browne
Monitor written by John Dumas
The information contained in this application note allows the construction of a
low cost development system. Object code (machine language) programs may be
entered from the keyboard or loaded from audio cassette tapes and be debugged
and developed. The programs may be dumped to cassette tape for permanent
storage. Techniques for increasing system capabilities are included.
Although the information contained herein, as well as any information provided
relative thereto, has been carefully reviewed and is believed accurate, Motorola
assumes no liability arising out of its application or use. Neither does it
convey any license under its patent rights nor the rights of others.
Copyright 1979 by Motorola Inc.
TABLE OF CONTENTS
MOS HANDLING RECOMMENDATION
1. INTRODUCTION
2. Micro Chroma 68 KIT PARTS
2.1 The MC6808 Microprocessor with Clock
2.2 The MC6847 Video Display Generator & MC1372 RF Video Modulator
2.2.1 The MC6847 VDG (Video Display Generator)
2.2.2 The MC1372 RF Video Modulator
2.3 The MC6846P3 ROM, I/O, Timer
2.4 The MC6820/21 Peripheral Interface Adapter (PIA)
2.5 The MC6850 Asynchronous Communications Interface Adapter (ACIA)
3. Micro Chroma 68 HARDWARE
3.1 Hardware Operation
3.2 Construction Hints
3.2.1 Micro Chroma 68 Debug
3.3 Soldering Tips
4. TVBUG® SOFTWARE
4.1 TVBUG® Operating System
4.1.1 G-Go to User Program Function
4.1.2 L-Load Function Tape (Kansas City Standard)
4.1.3 P-Punch Function Tape (Kansas City Standard)
4.1.4 V-Verify Tape (Kansas City Standard)
4.1.5 M-Memory Change Function
4.1.6 E-Block Memory Exchange Function
4.1.7 Q-Quiek Load Function
4.1.8 M-Memory Fill Function
4.1.9 0-Offset Calculation Function
4.1.10 R-Print Contents of MPU Registers
4.1.11 Z-Clear Screen Function
4.1.12 Breakpoints
4.1.12.1 S-Set a Breakpoint with Address "N"
4.1.12.2 U-Unset a Breakpoint with Address "N"
4.1.12.3 D-Remove all Breakpoints
4.1.12.4 B-Print Out all Breakpoints
4.1.12.5 N-Trace Next Instruction
4.1.12.6 C-Contine
4.1.13 User Defined Functions
4.1.14 User Input Function
4.1.15 User Output Function
4.2 Software Example
5. SYSTEM EXPANSION AND APPLICATIONS
5.1 Interface EXORciser Bus
5.2 Extra ROM/PROM Utilization
5.3 Composite Video from MC6847/MC1372
TABLE OF CONTENTS (con't.)
5.4 Use of MCI 372
5.5 RS-232 Drivers for Printer
5.5.1 Software for Printer
5.6 S1-S9 Punch/Load Software
5.7 Dynamic RAM Addition
5.7.1 4K or 6K Dynamic RAMs
5.8 Graphic Mode Control
s
4
(e.g. space bar). The modifier will be either two or four hex characters
depending on the command mode. When entering hexidecimal data, i.e. memory
examine function, the data entered is right-hand justified. For example: A
desired address $015F is to be entered in the memory examine function. All that
need be entered is $15F. If an error is entered ($1 5E) just type $015F following
the previously entered three digits. The TVBUG firmware may be used to debug and
evaluate a user program and to perform the following functions:
1) G - Go to Address "N" (User Program)
2) L - Load Kansas City Standard Tape (JBUG® Format)
3) P - Punch/dump Kansas City Standard (JBUG Format)
4) V - Verify Kansas City tape
5) M - Memory change
6) E - Examine a block of memory
7) Q - Quick load of Hex Data
8) F - Fill a block of memory
9) 0 - Offset calculation
10) R - Display contents of MPU registers
11) Z - Clear screen and initialize I/O
12) S - Set a breakpoint with address "N"
13) U - Unset breakpoint with address "N"
14) D - Delete all breakpoints
15) B - Print out all breakpoints
16) N - Trace the next instruction
17) C - Continue execution from the current location
18) T - Trace "N" instructions
19) - User defined functions
4.1.1 G - Go to User Program Function
This function allows the user to execute a USER program. To use this function
type a "6", starting address, and ret urn. The firmware will execute a USER
program.
4.1.2 I - Load Tape Function (Kansas City Standard)
The function allows the user to load a Kansas City Standard formatted audio
cassette tape. This includes tapes punched using Motorola's JBUG® and CRTBUG®
monitor. To use this function:
1. Press Reset
2. Type "L". The firmware will CRLF and ask for an offset, (16 bits,
Hexadecimal, with leading zeros assumed).
3. Enter the offset. The offset must be the difference between the existing
start address and the desired start address; if none, type a space.
4. Type "return 11 . Start the tape by pressing "play" on the cassette recorder.
Insure that the recorder "ear" to P.C. board "ear" is connected.
5. After approximately 40 seconds of leader, the firmware will print a name if
any, and a "B" for each 256 bytes and a "B" for the remainder, if any. If
the data was not stored into memory correctly, the "B" is followed by the
message, "MEMORY BAD" and the firmware will return to TVBUG program control.
4.1.3 P - Punch Tape Function (Kansas City Standard)
This function allows the user to store data from memory on audio cassette tape
using the Kansas City Standard. To use this function:
1. Press Reset.
2. Type "P". The firmware will CRLF and ask for a beginning address.
3. Enter beginning address and type a space. The firmware will ask for a
ending address.
4. Enter ending address. The firmware will CRLF and ask for a name.
5. Enter the name. The name may be up to 32 (31 + CR) characters long. If
tape must be read by a JBUG monitor, do not use "B" or "G" in the name as
these characters are interpreted by the JBUG firmware as control characters.
6. Connect the tape recorder "mike" to the P.C. board "in" (P3) and start
recording.
7. Type return. The firmware will print 40 seconds of leader (F's) followed by
an 80 (Start Char.), Name (ASCII Code), Byte count, Starting Address, and
"42" (ASCII "B") followed by data. A short leader terminated with "42"
(ASCII "B") will be printed for each 256 bytes.
4.1.4 V - Verify Tape (Kansas City Standard)
This function is used to verify a PUNCH or LOAD operation. To use this
function:
1. Press Reset.
2. Enter a "V". The firmware will CRLF and ask for an offset.
3. Enter the offset. The offset must be the difference between the existing
start address and the desired start address; if none, type a space.
4. Set up the tape recorder as shown in the load function.
5. The firmware will print file name, CRLF, and print a "B" for each 256 bytes.
If the data on the tape and the contents of the memory do not agree, the
firmware will print "MEMORY BAD" and return to TVBUG program control.
4.1.5 M - Memory Change Function
The function will examine a location in memory, change the contents if desired,
and return the contents to memory in that order. To use the MEMORY CHANGE
function:
1. Enter an "M".
2. Enter the address to be changed and press line feed. TVBUG firmware will
CRLF and print the address followed by data.
3. Enter new data if desired. Line feed will then return data to memory and
open the next location. Up arrow Ct) will return data to memory and open the
previous location. To return to TVBUG control program, press the carriage
return key.
TVBUG
M 0
0000 XX 00
0001 XX 00
TVBUG
4.1.6 E - Block Memory Examine Function
This function allows the user to display a block of memory on the screen. To
use this function:
1. Enter an "E".
2. Enter the beginning address of the block to be examined and type a space.
The firmware will ask for ending address.
3. Enter an address and type a space.
4. The firmware will CRLF and print the beginning address and contents of the
first eight memory locations. Underneath the contents of each location is a
period. If the data at that location is an ASCII character, the character
will be printed under the data. Each time a space is entered, the next 8
locations will be printed until it reaches the ending address; at which time
the firmware will return to the TVBUG control program.
TVBUG
E
BEG ADR?0 END ADR?F
0000 54 56 20 42 55 47 XX XX
T V BUG..
0008 XX XX XX XX XX XX XX XX
TVBUG
4.1.7 Q - Quick Load Function
This function allows the user to enter blocks of hex data using the MEMORY
EXAMINE function. To use this function:
1. Type "Q". The firmware will CRLF and ask for the beginning address.
2. Enter beginning address and type a space. The firmware will ask for the
ending address.
3. Enter ending address and type return. The firmware will CRLF, print the
beginning address and wait for data.
4. Enter hex data followed by a space. The firmware will CRLF on the 8th
location, print the address and wait for data. When the ending data has been
entered, the firmware will return to TVBUG control program.
Typical Display
TVBUG
Q
BEG ADR?0 END ADR7F
0000 XX XX XX XX XX XX XX XX
0008 XX XX XX XX XX XX XX XX
TVBUG
4.1.8 F - Memory Fill Function
This function allows the user to fill a block of memory with a character. To
use this function:
1. Enter an "F". The firmware will CRLF and ask for the beginning address.
2. Enter the beginning address and type a space. The firmware will ask for an
ending address.
3. Type a space. The firmware will CRLF and ask for a character.
4. Enter the desired character and type return. The firmware will write the
character into each of the defined memory locations and return to TVBUG
program control .
Typical display for MEMORY FILL function:
Note: Filling Stack RAM may result in loss of control as the MPU may execute an
un implemented opcode.
BEG ADR? XXXX END ADR? XXXX
CHAR? XX
TVBUG
4.1.9 0 - Offset Calculation Function
This function allows the user to calculate 16-bit offsets. If the offset is
outside the 8-bit ,, branch ,, limits, the firmware will print the offset followed
by the message "TOO FAR". This function simplifies the calculation of offsets
for branch instructions. To use this function:
1. Type an "O". This firmware will CRLF and ask for the beginning address.
2. Enter the address of the branch op code and type a space. The firmware will
CRLF and ask for the ending address.
3. Enter the address of branch destination and type return. The firmware will
CRLF, print the offset and return to TVBUG control program. Offsets will be
printed as a 16-bit word. The least significant 8 bits will be the offset.
Positive Offset:
0
FEG ADR?0 END ADR?F
OFFSET = OOOD
TVBUG
Negative Offset:
0
FEG ADR?F END ADR?0
OFFSET = FFEF
TVBUG
Offset Outside of an 8-bit branch:
0
FEG ADR?0 END ADR? 82
OFFSET = 0080 TOO FAR!
TVBUG
4.1.10 R - Print contents MPU Registers
This function allows the user to examine the MPU registers by reading them from
the stack. To use this function type "R". The firmware will place contents of
the MPU registers onto the stack RAM and then place them on the screen in the
following format:
CC B A X P S
XX XX XX XXXX XXXX XXXX
Where:
CC = Condition Code register
B = B accumulator
A = A accumulator
X = Index register
P = Program counter
S = Stack pointer
4.1.11 Z - Clear Screen Function
To use this function type "Z". The firmware will fill the display memory block
with a space character, clear the screen, initialize the system I/O ports, and
# return to TVBUG program control.
4.1.12 Breakpoints
There are 7 TVBUG commands dealing with breakpoints.
1) S - Set breakpoint with address "N".
2) U - Unset breakpoint with address "N".
3) D - Delete all breakpoints
4) N - Next instruction
5) T - Trace "N" instructions
6) C - Continue execution from current location
7) B - Print out all breakpoints
4.1.12.1 S - Set A Breakpoint with Address "N"
To set a breakpoint type an "S" followed by the address, then type return. The
firmware will print the breakpoint address with up to 7 additional breakpoints
that might be set, and return to TVBUG program control.
Note: Breakpoint $0000 is illegal.
Typical Display for NEXT Instruction:
XX XX XX XXXX 0030 XXXX
TVBUG
N
XX XX XX XXXX 0032 XXXX
TVBUG Typical display for Setting Breakpoints:
TVBUG
S 10
0010
TVBUG
S 20
0010 0020
TVBUG
S 30
0010 0020 0030
TVBUG
4.1.12.2 U - Unset A Breakpoint with Address "N"
To unset a breakpoint type a "U" followed by the address, then return. The
firmware will remove the breakpoint and return to TVBUG control program.
Typical Display for Unsetting Breakpoints:
TVBUG
U 10
TVBUG
U 20
TVBUG
4.1.12.3 D - Remove all Breakpoints
To remove all breakpoints, type a "D". The firmware will remove the breakpoints
and return to TVBUG program control.
4.1.12.4 B - Print Out all Breakpoints
To examine breakpoints type a "B". The firmware will print all breakpoints and
return to TVBUG control.
NOTE: The following commands assume that a program has been exeucted and halted
at a Breakpoint.
4.1.12.5 N - Trace Next Instruction
This command allows the user to single step through a series of instructions.
To use this command, type an "N". The firmware will execute the NEXT instruction
and print the contents of the MPU registers. It will then return to TVBUG
program control.
4.1.12.6 C - Continue
The Continue command is used to step the program from breakpoint to breakpoint.
To use this command, type a "C". The firmware will execute the user program from
the current location to the next breakpoint, and print out the contents of the
stack.
Typical Display for CONTINUE Instruction:
(Breakpoints set at $0030, $0040, $0050)
XX XX XX XXXX 0030 XXXX
TVBU6
C
XX XX XX XXXX 0040 XXXX
TVBUG
C
XX XX XX XXXX 0050 XXXX
TVBUG
4.1.13 User Defined Functions
TVBUG contains three user defined jumps that may be called from the keyboard and
two user defined jumps called by the monitor. All jumps are initialized with a
Reset. However, if the user wishes to prevent these vectors from being lost on
Reset, the stack RAM may be hardware deselected from $F390, to $F39F inclusive.
A small ROM, containing the permanent vectors, is patched over these locations
(see listing in appendix B) as shown in Figure 4.2.
AfS -
A/4 -
A/3 -
AlZ -
KC\ -
Ato -
A9 -
Ag -
A7. -
At> -
A~s -
A* -
<
/o
Jl
J2
13.
I
y
74tSJ33
±
__7Z>
Figure 4.2 Hardware Deselect of Stack RAM from $F390 to $F39F
To use the keyboard jumps, type the appropriate character (!,",#). Firmware
will then execute the program from the address stored in temporary RAM at the
following locations:
CHAR.
INST. ($7E)
$F396
$F399
$F39C
HIGH BYTE
$F397
$F39A
$F39D
LOW BYTE
$F398
$F29B
$F39E
4.1.14 User Input Function
This function flowcharted in Figure 4.3 allows the user to insert a user routine
into the monitor input loop. Each time the monitor goes around its input loop it
checks the user input three byte vector. Since it is initialized to RTS, the
monitor will ignore this vector until the user changes it. The three temporary
RAM locations reserved for the user input vector are:
INST. (7E)
$F390
HIGH BYTE
$F391
LOW BYTE
$F392
To use this function, first write the user vector into stack.
Figure 4.3 Flowchart for User Input Function
Example:
LDAA: User vector (High Byte)
STAA: $F391
LDAA: User vector (Low Byte)
STAA: $F392
LDAA: #$7E
STAA: $F390
Initialization complete
If this vector is entered with the keyboard, the jump instruction (7E) must be
entered last.
The USER INPUT routine must set the carry bit if there was a user input. If
there was no input it must clear the carry bit. All user I/O routines must end
with RTS.
4.1.15 User Output Function
This function flowcharted in Figure 4.4 allows the user to insert a user output
routine into the monitor output routine. Each time the monitor performs its
OUTCH (output character) routine it checks the three temporary RAM locations
reserved for the user output vector.
Since these locations are initialized to RTS, the monitor will ignore them until
they are changed by the user.
To use this function, write the jump vector into temporary RAM. If the vector is
left in temporary RAM, I/O devices such as a printer or a modem may be
controlled on the fly by changing the instruction location ($F393) from the jump
($7E) to an RTS ($39). All user I/O routines must end with RTS.
INST. (7E)
$F393
HIGH BYTE
$F394
LOW BYTE
$F395
YES
NO
RTS
RTS
Figure 4.4 Flowchart for User Output Routine
4.2 Software Example
The following example program is suitable for gaining familiarity with the TVBUG
monitor features* The program adds the five values in locations $10 through $14
using Accumulator A and stores the final result in location $15. The
intermediate total is kept in Accumulator A; Accumulator B is used as a counter
to count down the loop. The Index Register contains a "pointer" (i.e., X
contains the address) of the next location to be added. The program, as follows,
contains an error which will be used later to illustrate some of TVBUG's
features.
In the following listing, the leftmost column contains the memory address where
a byte (8 bits) of the program will be stored. The next column contains the
machine language op-code and data for a particular microprocessor instruction.
The next four columns contain the mnemonic respresentation of the program in
assembler format.
★
*Add
5 numbers
at locations
10-14
*Put
*
answer in
location 15
0020
8E
STRT
LDS
$FF
DEFINE STACK IN USER AREA
0021
00
0022
FF
0023
4F
CLRA
TOTAL = 0
0024
C6
LDAB
#4
INITIALIZE COUNTER
0025
04
0026
CE
LDX
#$10
POINT X TO LOCATION 10
0027
00
0028
10
0029
AB
LOOP
ADDA
0,X
ADD 1 LOCATION TO TOTAL
002A
00
002B
08
I NX
POINT X TO NEXT LOCATION
002C
5A
DECB
DONE ALL 5 LOCATIONS?
002D
26
BNE
LOOP
BRANCH IF NOT.
002E
FA
002F
97
STAA
$15
SAVE ANSWER
0030
15
0031
3F
SWI
GO TO TVBUG
A detailed procedure for entering and debugging this program is shown in the
following steps.
1. Start up and enter the program in RAM
A. Turn power on. Push reset button on the card. TVBUG will respond
as shown in Figure 4.1.
B. Type M followed by 20CR. This displays the current contents of location
$0020.
C. Type 8E. This replaces the contents of $0020 with 8E which is the op-code
for the first instruction, LDS.
D. Type LF. This steps to the next location ($0021) and displays the
contents.
E. Type 00.
F. Type LF.
G. Type next byte of op-code or operand (FF in this case).
H. Repeat steps F and G for remaining instuctions.
I. Type CR to close the memory change function.
2. Verify that the program was entered correctly.
A. Type M 20 CR. Location 20 will be displayed.
B. Type LF. Next location will be displayed.
C. Repeat step B until done, visually verifying data entered in Step 1.
D. Type CR.
3. Enter Data in Locations 10-14
A. Same as 1 except type M 10 CR to start the sequence. Any data may be
entered; however, for purposes of this example 01,02,03,04 and 05 should
be entered.
B. Type CR
4. Verify Data
A. Repeat step 2 except type M 10 CR to begin the sequence. Verify that the
memory contains the values 01,02,03,04 and 05 in sequencial order.
5. Run the Program
A. Type CR to insure no other option is active.
B. Type G 20. The program will run down to the "SWI" instruction at location
31 which will cause it to go to TVBUG and show the following display.
CC B A X PS
DO 00 OA 0014 0032 00G8
TVBUG
6. Check the Answer
Type M 15 CR. (The answer is stored in location 15). Note that it says $0A
(decimal 10). The correct answer is $0F or decimal 15; therefore, there is
a problem in the program as originally defined. The next steps should help
isolate the problem and correct it.
7. Breakpoint and Register Display
A. It might be helpful to see what the program was doing each time it went
through the loop. Therefore, set a breakpoint at the beginning of the
loop, location 0029. To do this type S 29 CR.
B. A breakpoint could also be set at location 002F to see the results. Type
S 2F CR.
C. TVBUG must be told where to begin, so type G 20. TVBUG will run to the
breakpoint and then display 0029 as the program counter. At this point
the program is suspended just before location $29 and is in TVBUG. On
detecting this breakpoint, TVBUG automatically displays the register
contents.
D. Type C to return to the example program and resume executing. Since the
breakpoint at location $0029 is in a loop it will again be the next
breakpoint. At this point the register contents will be displayed again.
33
If this were done the A Register would appear to contain the partial sum
and the B Register would be decremented. The X Register would be
incremented by one.
E. Type C (Proceed). Once again the registers contents will be
displayed.
F. Type C (Proceed). Same comment as D.
6. Type C (Proceed). Display will now show register contents as of
breakpoint at $2F. The program has now successfully completed the loop 4
times and the A-Register contains the incorrect sum.
8. Correcting the Program
A. From above it is evident that although the program was supposed to add
five numbers, the loop was executed only four times. Therefore, the LDAB
#4 instruction at location 24 and 25 should have initialized B to 5.
B. Type D. Clear existing breakpoints.
C. Type M 25 CR. This display = 0025 04.
D. Type 05. The display * 0025 0405 enter 05. This will now permanently
change the LDAB #4 instruction to a LDAB #5 instruction.
E. Type CR
F. Type G 20. Execute the program.
G. Type M15 Display = 0015 OF, the expected answer; the program is fixed.
9. Trace Through the Program
A. In order to execute a trace, the program must first be stopped at a
breakpoint. To trace from the beginning do:
B. Type D. This clears the existing breakpoints.
C. Type S 20. This sets a breakpoint at the first instruction.
D. Type G 20 (go to user program). TVBUG will immediately get the breakpoint
and stop before executing the instruction at 20.
E. Type N. The program will execute one instruction and display all register
contents. To continue, type N.
F. To trace multiple instructions type T followed by the hexadecimal number
of instruction to be traced. Register contents will be displayed after
execution of each instruction.
G. All Breakpoints should be deleted by typing D CR before hitting Reset, or
the program will be permanently altered.
10. Offset Calculation Including Register Modification
A. Assume the SWI instruction at location 31 is to be changed to a branch
always (BRA) to location 20. This will cause the program to remain in an
infinite loop (i\e., the program has no end and will run continuously
unless interrupted by some outside stimuli). Type M31 to open the memory
location. The display = 0031 3F.
B. The op-code for a BRA is a 20, so type 20 LF. The display = 0031 3F 20.
C. The second byte of the BRA instruction should be the two's complement
negative offset to location 20. Type 0.
D. TVBUG will respond with "BEG ADR?". Type in the address, 31 CR, of the
BRA op- code.
E. TVBUG will respond with "END ADR?". Type in the desired branch address,
20 C/R.
F. TVBUG will respond with "OFFSET=FFED\
G. Type M 32 CR.
H. Insert the branch offset by typing the last two hex digits, ED.
3#
11. Executing and Aborting
A. Type G 20. The program will begin executing and the TVBUG cursor will
disappear since the program now contains an infinite loop.
B. Hit the break switch. This interrupts the program, displays all
registers, and returns control to TVBUG.
C. Type C. Program will again continue execution.
D. Repeat B and D as many times as you wish.
E. Reset may be used to halt the program, reinitialize the screen and the
I/O.
12. Punch Program to Cassette
A. Rewind the cassette.
B. Press RESET.
C. Type P.
D. Type 20 CR for the begin address.
E. Type 32 CR for the end address.
F. Type in an optional title up to 31 characters and CR.
G. Turn on the cassette player in the Record mode.
H. Wait for the prompt and cursor to reappear (approximately 60 seconds).
13. Load Program from Cassette
A. Turn off power. This will cause the program in memory to be lost. Turn
power back on.
B. RESET
C. Rewind cassette.
D. Start cassette in playback mode.
E. Type L. Wait for the TVBUG prompt and an offset (0) followed by a CR.
Each 'B 1 represents 256 bytes of data being loaded. Test the program by
any of the options described above.
14. Verify Program from Cassette
A. Push Reset button and get TVBUG prompt
B. Rewind cassette
C. Start cassette in playback mode.
D. Type V and an offset (0) followed by a V.
E. Each "B" represents 256 bytes of data being verified. The TVBUG prompt
represents a complete verification of the cassette tape.
5. SYSTEM EXPANSION AND APPLICATIONS
The wire wrap area may be used to implement several applications and expand the
system capabilities and usefulness.
5.1 Interface EXORciser Bus
As packaged, TVBUG can full fill a multiple of applications, but does lack one
thing, and this is the necessary components to expand. Uses of this expansion
can be for additional memory, ROMS, peripherals and the like.
Looking at Figure 5.1, the address lines are connected to 8T97 three-state
buffers which jsolate the MRU bus from the edge connector/motherboard. Because
the data bus is a bi-directional bus, provision has been made to provide two-way
buffering. The driver enable signal for the 8T26's is provided by an 8 input
NAND gate. This gate is necessary because certain addresses must be excluded
S 1 !™ 1 " th ? READ mode - These include the TVBUG ROM (F800-FFFF), Display RAM
($D000-E3FF), F400-F7FF (I/O), $F000-F3FF (Stack) and (E800-EFFF). This last 2K
slot may be used for external routines in ROM and RAM and if desired could be
placed on an external card. Delete the two connections to the gate if off-board
operation is desired. If non-inverted data is desired, use 8T28's in place of
8T26's. This design assumes that all user RAM will be external.
Bus
Al
At
A*
*«-
A5
Afc
A*
At
A*
At!
A*
m
0Z
'01
03
w
OS
Mr
m
40
~Al
- A2
.A3
m
.At,
7T
. AT
. A8
. A<5
Ale
. All
em
J*.
. A»l
Art
. A*
A/5
33-
an* TL
/3
1X6
Of
D3
<:
2-
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T3J
P4
05
in
VMA
J *Z CB)
1 Z/Z
2 . PBco- erne
poo* * W9*e (ctml*)
+5
Figure 5.1 TVBUG Expansion to an Outside World
36*
5.4 Use of MC1372
By configuring the MC1372 as a composite video generator, its output can be fed
through coaxial cable to drive a remote MC1373 RF modulator. In some
applications it is more advantageous to transmit a composite video signal down
line rather than an RF. See Figure 5.4.
Figure 5.4 Remote RF with MC1372
5.5 RS-232 Drivers for Printer
To implement a "screen" printer for TVBUG, all that is required is to write
driver software, (Appendix C) and hook up either RS-232 or TTL drivers for a
printer. See Figure 5.5.
Note: See Appendix C for Software Drivers
Figure 5.5 Use of On-Board ACIA for Hard Copy (Printer)
5.5.1 Software for Printer
By using the user output routine provided in TVBUG, a character may be sent to a
peripheral output device. Here's how it works: Everytime TVBUG performs an
output character (OUTCH) routine, it checks three memory locations in the Stack
RAM area. Since these routines are initialized to RTS, the monitor will ignore
them until changed by the user. The program listing provided changes these
locations to a JSR at the beginning location of the program. At this time, the
OUTCH routine cycles through this additional subroutine and prints a character
to whatever is connected to the on-board ACIA.
The on-board ACIA was used for the printer driver to save money, and to reduce
the number of additional components. The present ACIA configuration will allow a
character rate of 300 baud (from tape interface MC1455), but may be changed to
allow any character rate when provided with the appropriate clock frequency
(divide by 16). Because TVBUG only responds to carriage returns, a line-feed and
4 null characters are sent to the printer during a carriage return operation.
This allows a printer to return fully to the left-hand most position before the
continuation of printing.
It must be noted that printing will take place during punch and load operations,
but will not provide the necessary CR's and null characters for proper printing.
Although the use of an input device (serial or parallel) is not shown, its
operation would be similar to that of the print routine. See User Input routine
for further details.
5.6 S1-S9 Punch/Load Software
As purchased, TVBUG has the capability of loading and punching Kansas City
Standard formatted tapes which utilize the MEK6800D2 binary style. Many styles
of format have been used in the KC Standard, one of the most widely known is the
format of MIKBUG®/MINIBUG®/EXBUG®, or the S1-S9 format. A program has been
written which allows the TVBUG user to load and punch this type of tape format.
See Appendix C. To use the S1-S9 system, type G $E803 CR. A prompt will ask
whether to punch, load or verify. If during a load or verify operation a bad
memory location is found, its address will be displayed. Each "S" displayed
represents 19 characters dumped, loaded or verified.
5.7 Dynamic RAM Addition
Due to its high density and low relative cost, dynamic RAM has proven to be one
of the most economical routes when designing systems which must have access to
large areas of memory. TVBUG can be easily adapted to a full complement of user
RAM 52K by the construction of the memory board shown in this application note.
5.7.1 4K or 16K Dynamic RAMs
4K or 16K Dynamic RAMs require a periodic "refreshing" to retain integrity of
what is stored there. There are several methods of providing this refresh which
include cycle stealing and transparent refresh. The board shown utilizes the
transparent method and appears static to the processor. It appears static
because all refresh is done during 01 or E low time. Fast RAMs must be used,
because a refresh and access cycle must be performed in one MPU clock cycle. The
system shown uses the MC3480-MC3242A combination of RAM controllers with delay
lines providing the required "t" times. One shots could be utilized in place of
these delay lines if they provide the correct amounts of delay. See MC3242A data
sheet.
MC6809-6800 64K Transparent
Refresh Dynamic RAM Card
X 32 pe*.
* "< J242
Note: Only one of eight
columns are shown. All
elements of Row 1 should be
connected to RAS1, Row 2, to
RAS2 etc. Only if not using
4K Dynamic RAMS.
Figure 5.6 Transparent Refresh Dynamic RAM Card
1
Figure 5.7 Refresh Logic
The actual schematic, and timing for the Transparent refresh method is shown in
Figures 5.8-5. 10. Memory clock (unstretched E) is fed into both MC3480 and
SN74LS90. The LS90 is used to divide MC to give a 89 KHz pulse for the refresh
clock. Although faster than the minimum 64 KHz required, this does nothing more
than refresh at a higher rate. The other MC is fed into the MC3480 memory
controller. Through the use of a flip flop and delay lines, the different timing
requirements are provided for the MC3480. Although more expensive, the delay
lines are far superior to using one shots whose external components can drift
considerably with temperature variations. The MC3480 provides the RAM array with
the necessary RAS and CAS signals, while the MC3242A provides the required
- addressing sequences, Chip enables cane from the 74LS138-74LS30 combination and
allow the user to have any or all 8K blocks of memory within the 6K memory map
selected.
5.8 Graphic Mode Control
The Micro Chroma 68 printed circuit board has the capability of fully exploiting
all VDG graphic modes. The mode select pins of the VDG are connected to the
peripheral data port of the MC6846 RIOT. By writing the appropriate "word" to
the port, any of the graphic modes may be selected. For example: to use the most
dense (2 color) graphics mode, do the following:
M F441 80 00 Resets Port
F442 00 FF Sets as all outputs
F443 39 Control word output
The word '39' is the control word for the most dense graphic mode. For other
control words, see Figure 5.11. From this point on (initialization of the RIOT),
any word placed in location $F443 will be written to the VDG. Remember that a
Reset will reset the 1/0 port and thus require re-initilization.
^3
4% /6KJi-
Potiops
3<*}|TCM W S£iSC7€X>
51 oooo- I w ' ' ^
52 ZOOO -
660O - TW?
55 aoco -
5fc AOOO - BRtr
S7 coco - pffr
se pooo - F^rc
AJbM* G>Mf/*Joovs.
Figure 5.8 Chip Select Logic
WAS*
Hit*
:..V//*.
.„.;?//>:.
-t
i
:
r-
-jr.;
4
St? 7
o
o
tzi
oetAy
T
O
o
III
Kill
Si -fcru SS
Figure 5,9 Suggested Layout
HEX VALUE TO
DFSTTY
RArKGRflllNn
DMUlN.URUUI'lU
fiRAfi t /n
O o*T O i / u
MFMOD V DCnilTDCn
Two Color Graphites
256 x 192
GRN
$39
6K x 8
256 x 1 Q?
RUFF
our r
<3ft
$o o
Ul\ A O
Colors
128 x 192
GRN
$29
3K x 8
BUFF GREEN
128 x 192
BUFF
$28
3K x 8
128 x 96
GRN
$19
2K x 8
128 x 96
Rl IF F
Dur r
$1 o
CK X O
1 ?Q v
ItO A 0*?
V3r\n
1 J/ v Q
I l\ X O
LCo X 0*f
DUr r
In X o
Fftiir* Pftl fty* fryanhifc
rUUi UUI Ul vji ajJll ltd
nFKKTTY
ULllol 1 I
rni fiD<?
Ml A VnLUt
MCMftD V D CHI 1 TD CH
1 po *, i go
IcO A x.74>
A
fcK Y ft
128 x 1Q?
1LO A IjC
R
ton
f^K Y ft
Dl\ a O
128 x 96
A
$21
3K x 8
COLORS
128 x 96
R
u
IK y ft
128 x 64
A
$11
2K x 8
A B
128 x 64
R
u
C-IN A O
Green Buff
64 x 64
A
$01
IK x 8
Yellow Cyan
64 x 64
B
$00
IK x 8
Rl up Maopirfri
Red Orange
ALPHA/SEMI -GRAPH ICS
BACKGROUND
HEX VALUE
MEMORY REQUIRED
INTERNAL ROM
GRN
$47
512 x 8
ORG
$46
512 x 8
EXTERNAL ROM
GRN
$43
512 x 8
ORG
$42
512 x 8
ACTUAL CONNECTIONS
6846
P0 CSS
PI A/G
P2 INT/EXT
P3 GMO
P4 GM1
P5 GM2
P6 INV
P7 N.C.
Figure 5.10 Graphic Mode Control
Appendix A
The Micro Chroma 68 Schematic, parts list, and assembly drawings and
construction hints are included for reference.
Appendix B
The following software listing contains the monitor jump table and temporary RAM
locations as well as other useful routines.
Note: Only the jump table and temporary RAM locations will be guaranteed on
furture versions of TVBUG. Caution should be exercised when using any other
routine.
Appendix C
TVRTS is a listing of the RS-232 driver software and the S1-S9 Loader/Punch
software.
Appendix D
The following are patches for TSC Software Packages. To covert to TVBUG, first
load the original TSC Program.. This can be accomplished by using the S1-S9
loader featured in Appendix C.
After loading, enter the following patches for each program. This can most
easily be dene by the memory Examine/Change function. Then punch on TVBUG tape.
D-1
+ 5V •*+ • f— — < +5V
I C1.C15, C20-23, C26-57 | | N
1 1 <GND
2) ALL CAPACITORS SHOWN ARE IN MICROFARADS,
=U0%, CERAMIC OR DISC
3) GROUND ALL UNUSED GATES
"ANT SPECIFICATIONS, DRAWINGS OH REPRINTS. OR DATA
FURNISHED TO IIDOU OR SELLER SNAIL REMAIN MOTOROLA'S
PROPERTY, SMALL K KEPT CONFIDENTIAL, SHALL IE USEO FOR
THE PURPOSE OF COMPLYING WITH MOTOROLA'S REQUESTS FOR
QUOTATION OR WITH MOTOROLA PURCHASE OR&ERS A HO SHALL
•E RETURNED AT MOTOROLA'S REQUEST. PATENT RIGHTS
EMtODIED IN DESIGNS. TOOLS. PATTERNS. DRAWINGS, OEVICES.
INFORMATION AND EQUIPMENT SUPPLIED IT MOTOROLA PUR-
SUANT TO THIS REQUEST FOR QUOTATION OR PURCHASE ORDER
AND EXCLUSIVE RIGHTS FOR THE USE IN REPRODUCTION THEREOF
ARE RESERVED IV MOTOROLA."
CHECKED RT
DATE
CHROMA 68
SCHEMATIC
MOTOROLA INC.
INTEGRATED CIRCUIT DIVISION / MOS
3SOI CD BLUE STICK, AUSTIN, TCXAS TtTtl
RU614-CHROMA 68
CQHPUROUTE W/O 02-7130 MOTOROLA
IfflCRO CHROMA 68 & - .
.LATER 1 —ASSEMBLY n&»*NG<~-*--'
MCROCHROMA 68 PARTS LIST
HICROCHRQHA 68 PARTS LIST (CONTINUED)
MICROCHROHA 68 KITS PARTS LIST (CONTINUCO)
Uy ief Dm
C1-C3. C7. CIO. €13.
CIS, C20-23.C26-S7
C4, CSS
cs
€6
Ci, CU. CM. CIS
CS
€12
CI6, C2S
C17
€18
€24
Rl
R2
83
84
88. 810-12, 82S, 830
86
87
88, 813
88
814, 81S, 818
816 '
811
819, 834
R20, R23-25. R28, R31-33
821
R22, 827
826
Value
,luF
100 uF 0 16V electrolytic
8-36pF Variable
SOpF
.OluF
.002uF
S6pF
lOOOpF
.02uF
ISOOpF
2700pF
Sk Pot
10k Pot
910
22k
3.3k
ISk
33k
8.6k
360
240
7S
ISO
10k
100k
Ik
2k
20k
Motorola jnteo/fttd Clrcultf
Quantity Bef Das
1
2
I
I
1
t
1
I
1
3
I
1
2
4
1
1
1
2
2
30
Ul
U2, U12
U3
U4
US
06
U?
U8
US
U10, U14U1S
Ull, U14
U16
U17, U18
Ul% U22-24
U20
U21
U2S
U26, 1127
U26, U2S
U30, U59
P/8
MC14SB4B
MC140138
MC6850*
MC6847*
MC1372*
MC14070B
MC140408
MC146S
HC6820/6821*
SN74LS00
SN74LS04
MC6846P3*
MC6683/8T97
SN74LS138
SN74LS21
HC14001S
HC6608*
HC68898r8T28
SM74LS08
MCM2U4-4S
Description
CMOS Htx Schmltt Trigger
CMOS Dual 0 FJtp-Floo
NHOS Asynchronous Communications Interface
Adapter (ACIA)
MHOS Video Display Separator (VOG)
Linear Color TV Vldto Modulator Circuit
CMOS Quad fxclui Ive-OB fiat a
CMOS 12-811 Unary Countar
Linear Timing Circuit
IHOS Parallel Interface Adaptor (PIA)
TTL Quad 2-Input HAND 6a to
TTL Mo* Inverter
ROM, I/O, Timer (RIOT) w/TVBUG 1.2 Monitor
Linear Max Three-State Buffers
TTL 3- to- 8 Lino Oocodor
TTL Dual 4- Input AND Sato
CMOS Quad 2- Input NOR 6a to
NHOS Microprocessor (MPU) with Clock
Llnoar Quad Bus Transceiver
TTL Quad 2-Input AND Cat a
NHOS IK x 4 Static RAM
Miscellaneous Components
Ity Re f Ota Description
51 Moawntary SPOT (Break)
52 Momentary SPST (Reset)
53 DPDT Switch (6008 8 RF)
VI 3.579545 MHz Crystal
Ql 2N2222A Transistor
Cherry "Pre" Keyboard (Cherry P/N B70-OSA8)
or equivalent with Interface cable terminated
with 24-pin header compatible with Jl
LI .luH adjustable Inductor
Tl 75 to 300 Matching Transformer
P2 Phono plug with compatible RF Interconnect cable
P3.P4 Phono plugs with compatible audio Interconnect
cable
Vastlgal Sideband Filter tuned to pass desired
channel frequency
PCS* MlcroChroma 68 Printed Circuit Board (Motorola
P/N SCPROM02PCB)
01, 02 IN914 Serial Oiode
* Included In MICROCHROHA 68 Kits (Motorola P/N SCPROM02PCB)
•Included in MicroChroma 68 Kits (Motorola P/N SCPR0M02)
/
NIcroChroM 68 Assembly Pert* Lift
Capacitors
8ef Des
VSlUe
Bef Oes
Value
CI
• IUf
C30
. lur
C2
• luF
C31
• luF
C3
.luF
C32
tut
C4
loour f lev Electrolytic
: C33
.luF
____ C5
9-J5pF Variable
mmmm C34
.luF
tmmmm C6
5QpF
— —
.luF
C7
• luF
C36
• iuF
Cfi
OluF
C37
luF
.' C9
.002uF
^ C38
.luF
— » dO
• IuF
1 1 1 1 _ _ C39
. IuF
. Ill
nii>c
•uiur
liiC
• lur
C12
56oF
C41
.luF
_cn
.luF
C42
.IMF
C!4
.OluF
C43
.luF
CIS
.luF
C44
.luF
C16
JOOQpF
C4$
.luF
C17
.02uF
C46
.luF
CIS
15O0pF
C47
.luF
C»
.OluF
C48
.luF
C20
.luF
C49
.luF
C21
.luF
C50
.luF
C22
.luF
C51
.luF
C23
.luF
C52
.luF
C24
2700pF
C53
.luF
C25
lOOOpF
C54
.luF
C26
.IuF
C55
JuF
C27
.luF
C56
.luF
C28
.luF
C57
.luF
C29
.luF
. .. CSB
lOOuF i 16V Electrolytic
MlcroChroma 68 Assembly Parts Lift (Continued)
Resistors
(1/4U)
Jtef Dcs
Value (Ohms)
81
5k Potentiometer*
82
10k Potentiometer*
83
S10
84
22k
8S
3.3k
86
15k
87
33k
88
5.6k
89
360
810
3.3k
811
3.3k
812
3.3k
813
5.6k
814
240
815
240
816
75
817
750
8ef Oes
Value (Ohms)
818
240
819
10k
820
100k
821.
lk
822
2k
823
100k
824
100k
825
100k
826
20k
827
2k
828
100k
829
3.3k
830
3.3k
831
100k
832
100k
833
100k
834
10k
*1 or 10 turn linear taper
Motorola Integrated Circuits
8ef Oes P/N Description
Ul MC14584B CMOS Hex Schnltt Trigger
U2 MCI 401 3B CMOS Dual 0 Flip-Flop
U3 MC6850** NMOS Asynchronous Conaunlcatlons Interface Adaptor (ACIA)
U4 MC6847** NMOS Video Olsplay fienerator (VDG)
U5 MC1372** Linear Color TV Video Modulator Circuit
U6 MC14070B CMOS quad Excluslve-OB Gate
U7 MC14040B CMOS 12-81 t Binary Counter
U8 MC1455 Linear Timing Circuit
U9 MC6820/MC6B21**NM0S Parallel Interface Adapter (PIA)
"Included In MlcroChroma 68 Kit Motorola P/N SCPR0MO2
NlcroChrowa it Assawhly Ports List (Continued)
iof Dos
»/N
Description
U10
SN74LSOO
Til. Quad 2-lnput NAHO Site
(III
SN74LS04
TIL Max Invortor
Ult
MC140138
CMOS Dual 0 Flfo-Hoo
mi
SN74LSOQ
TTL Quad 2- Input NANO 6ata
uu
SN74LS04
TIL Max Invartar
uts
SM74LSOO
TTL Quad 2- Input HAHO fiato
uu
HC6846P3**
NNOS MM, I/O, Tlawjr (RIOT) wltH TVB06 1.2 Monitor Program
017
MC6887/HC8197
LtMar Max Throo-Stato tuf fart
Ult
MC688tyftCtT97
Lfnotr Max Thrto~Stato Buffars
019
SN74LS138
TTL 3-to-8 Lint Qacodor
020
SN74LS21
TIL Dual 4- Input ANO fiatt
021
HC1400II
CMOS Quad 2- Input HOR Sit a
1122
SN74LS138
TIL 3-to-a Lin* Oacodar
02$
SN74LS130
TIL 3-to-8 Lint Oacodar
024
SN74LS138
TIL 3-to-t Lino Oacodar
U2S
NC6808**
NHOS Mlcroprocassor (MPOj with Clock
U26
Mcetsytcra
LfMtr Quad tut Trans ca War
U2?
mc6809mc8T2b
Linear Quad tus Transceiver
028
SN74LSQ8
TTL Quad 2- Input ANO Sat a
029
SN74LS08
TTL Quad 2- Input ANO Gata
MCM 2114-45 NHOS IK X 4 Static RAMS
U30 040 050***
.031 U41 _051
U32 Mp**^ 052
033*** 043 US 3
" 034 ' 044*" U54
035*** 04S 0S5
UU 048 056
U37 047 057
U38 _ 048*** : 058
*U39 049 059#tf|<
*** Thasa aeenrios aro required for tha alnleul systeei.
MtcroChroaa €8 Assart!* Parts List (Continued)
^Wtflt»f°yf ft**™*"**
Ref Oas Description
SI Momentary SPOT (Break)
. S2 Momentary SPST (Reset)
. S3 OPOT Switch (60dB t Rf )
ft 3.S79S4S MMi Crystal
_ Ql 2N2222A Transistor
Cherry *PRO" Kayboard (Charry P/N B70-05A8) or equivalent
with 24 pin haadar compatible with 41
LI .luH adjustable inductor
Tl 78 to 300 Matching Trsnsfonaar
P2 Phono plug vlth compatible RF Interconnect cab la
_ P3 Phono plug with compatible audio interconnect cibla
P4 Phono plug with conpatlhlo audio Intarconnact cab la
Vestlgal Sldaband filter tunad to pass daslrod channa! frequency.
_PCB**M1creChro*a 88 Prlntad Circuit toard (Motorola P/N SCPR0MQ2PCB)
01 IN914 Signal oioda
. 02 IN914 Signal Oioda
** Includad In MtcroChrom 68 Kit (Motorola P/N SCPR0M02)
PAGE 001 TVBUG46 .SA:0 TVBUG 1.2 A VDG MONITOR FOR 6800,01,02,03,08 SYSTEM
S0001 *
.0002 NAM TVBUG
00003 TTL 1.2 A VDG MONITOR FOR 6 800,01,02,03,08 SYST
00004 * REV 1
00005 * COPYRIGHT (C) 1978 BY JOHN DUMAS
00006 * FOR MOTOROLA INC.
00007 *
00008 * TVBUG (TM) MOTOROLA
00009 *
0001Q * AUSTIN, TEXAS
00011 * MICROCOMPUTER CAPITAL OF THE WORLD!
00012 *
00013 * CURRENT REVISION DATE = NOV 20 1978
00014 *
00015 * ALTHOUGH THE INFORMATION CONTAINED HEREIN,
00016 * AS WELL AS ANY INFORMATION PROVIDED RELATIVE
00017 * THERETO, HAS BEEN CAREFULLY REVIEWED AND IS
00018 * BELIEVED ACCURATE, MOTOROLA ASSUMES NO
00019 * LIABILITY ARISING OUT OF ITS APPLICATION OR
00020 * USE; NEITHER DOES IT CONVEY ANY LICENSE UNDER
00021 * ITS PATENT RIGHTS NOR THE RIGHTS OF OTHERS.
00022 *
00023 * FOLLOWING ARE TVBUG COMMANDS
00024 * EACH COMMAND IS 1 LETTER FOLLOWED
00025 * BY AN OPTIONAL MODIFIER (ADDRESS OR
00026 * DATA). MODIFIER IS ALWAYS HEX WITH
""-0027 * LEADING ZERO(S) ASSUMED. MODIFIER
o0028 * FIELD IS TERMINATED WITH A NON-
00029 * HEX ENTRY (I.E. SPACE BAR). MODIFIER
00030 * WILL BE EITHER 2 OR 4 HEX DEPENDING
00031 * UPON COMMAND MODE.
00032 *
00033 * L LOAD K.C. STANDARD TAPE (D2 FORMAT)
00034 * M MEMORY CHANGE
00035 * P PUNCH K.C. STANDARD TAPE (D2 FORMAT)
00036 * R DISPLAY CONTENTS OF TARGET STACK
00037 * CC B A X P S
00038 * B PRINT OUT ALL BREAKPOINTS
00039 * F FILL MEMORY BLOCK
00040 * C CONTINUE EXECUTION FROM CURRENT LOCATION
00041 * N NEXT INSTRUCTION TRACE
00042 * T TRACE 'N' INSTRUCTIONS
00043 * G GO TO LOCATION »N'
00044 * D DELETE ALL BREAKPOINTS
00045 * U UNSET BREAKPOINT WITH ADDRESS *N'
00046 * E EXAMINE BLOCK OF MEMORY
00047 * Q QUICK LOAD OF HEX DATA
00048 * O OFFSET CALCULATION (BRANCH)
00049 * S SET A BREAKPOINT WITH ADDRESS 'N'
00050 * V VERIFY KC TAPE (D2 FORMAT)
00051 * Z CLEAR TV SCREEN
410052 * ! USER FUNCTION #1 (SHIFT 1)
JD053 * " USER FUNCTION #2 (SHIFT 2)
t)0054 * # USER FUNCTION #3 (SHIFT 3)
PAGE 002 TVBUG46 .SA:0 TVBUG 1.2 A VDG MONITOR FOR 6800,01,02,03,08 SYSTEM
00056 *
00057 OPT • S,0,CREF
00058 003F A SWI EQU $3F SWI OP CODE
00059 *
00060 D000 A VDGRAM EQU $D000
00061 *
00062 * PIA FOR D2 HEX KEYBOARD & DISPLAY
00063 * (USED IF D2 KIT IS RETROFITTED)
00064 F420 A KEYAD EQU $F420
00065 F421 A KEYAC EQU KEYAD +1
00066 F422 A KEYBD EQU KEYAD +2
00067 F423 A KEYBC EQU KEYAD +3
00068 *
00069 * PIA FOR VDG & ASCII KEYBRD
00070 *
00071 F404 A PI A AD EQU $F404
00072 F405 A PIAAC EQU PIAAD+1
00073 F406 A PIABD EQU PIAAD+2
00074 F407 A PIABC EQU PIAAD+3
00075 *
000 76 * ACIA FOR KC STANDARD TAPE INTERFACE
00077 *
00078 F408 A ACIAS EQU $F408
00079 F409 A AC IAD EQU ACIAS+1
58 B' z
PAGE 003 TVBUG46 .SA:0 TVBOG 1.2 A VDG MONITOR FOR 6800,01,02,03,08 SYSTEM
^0081
*
JO 82
*
00083A
F800
ORG
$F800
00084
F800
A
BASORG
EQD
*
BASE ORIGIN
00085
*
00086
* JUMP
TABLE
TO MONITOR
00087
*
00088A
F800
7E
FEE1
A
JMP
INCH1
INPUT CHAR
00089A
F803
7E
FF0F
A
JMP
OUTCH1
OUTPUT CHAR
00090A
F806
7E
F995
A
JMP
PDATA1
OUTPUT STRING
00091A
F809
7E
F929
A
JMP
BADDR
INPUT HEX
00092A
F80C
7E
FFC9
A
JMP
SCROLL
UP 1 LINE
00093A
F80F
7E
F9B0
A
JMP
OUT4HS
OUTPUT 4 HEX+ SPACE
00094A
F812
7E
F9B2
A
JMP
OUT2HS
OUTPUT 2 HEX+SPACE
00095A
F815
7E
FFA8
A
JMP
INIT
CLEAR SCREEN
00096A
F818
7E
F96C
A
JMP
GET ADR
GET START & STOP ADR
00097A
F81B
7E
FF7F
A
JMP
SAVE
SAVE AREG 0,X
00098A
F81E
7E
FE86
A
JMP
SYNCLD
LOAD AREG 0,X
00099A
F821
7E
FB20
A
JMP
CONTRL
RESTART POINT
00100
*
00101
*
I/O INTERRUPT SEQUENCE
00102
*
00103A
F824
FE
F37A
A
IO
LDX
IOV
00104A
F827
6E
00
A
JMP
X
00105
*
00106
*
NMI SEQUENCE
■^0107
*
J108A
F829
FE
F380
A
POWDWN
LDX
NIO
GET NMI VECTOR
001 09A
F82C
6E
00
A
JMP
X
00110
*
00111
*
SWI INTERRUPT SEQUENCE
00112
*
00113A
F82E
FE
F384
A
SFEI
LDX
SWI1
00114A
F831
6E
00
A
JMP
X
5S>
PAGE 004 TVBUG46 .SA:0 TVBUG 1.2 A VDG MONITOR FOR 6800,01,02,03,08 SYSTEM
00116
*
00117
* JUMP
TABLE
TO ROUTINES PERFORMING TVBUG FCTN'S
00118
00119
F833
A
FCTABL
EQO
*
00120
*
00121A
F833
21
A
FCC
/!/
00122A
F834
F396
A
FDB
USR1
GO USER #1
00123A
F836
22
A
FCC
/"/
00124A
F837
F399
A
FDB
USR2
GO USER #2
00125A
F839
23
A
FCC
/#/
00126A
F83A
F39C
A
FDB
USR3
GO USER #3
00127A
F83C
42
A
FCC
/B/
"B" - PRINT ALL BREAKS
00128A
F83D
FB52
A
FDB
PNTBRK
00129A
F83F
43
A
FCC
/c/
"C" - CONTINUE
00130A
F840
FB90
A
FDB
CONT
00131A
F842
44
A
FCC
/D/
"D" - DELETE ALL BREAKS
00132A
F843
FB47
A
FDB
DELBRK
00133A
F845
47
A
FCC
/G/
"G" - GO TO ENTERED ADDRESS
00134A
F846
FB61
A
FDB
GOTO
00135A
F848
4C
A
FCC
/L/
"L" - LOAD
00136A
F849
F9C0
A
FDB
LOAD
00137A
F84B
4D
A
FCC
/M/
"M" - MEMORY CHANGE
00138A
F84C
FA29
A
FDB
CHANGE
00139A
F84E
4E
A
FCC
/N/
"N" - NEXT (TRACE 1 INSTR)
00140A
F84F
FB73
A
FDB
NEXT
00141A
F851
50
A
FCC
/P/
"P" - PUNCH
00142A
F852
FC35
A
FDB
PUNCH
00143A
F854
52
A
FCC
/ R/
"R" - PRINT STACK
001 44A
F855
FB98
A
FDB
PSTAK1
00145A
F857
54
A
FCC
/T/
"T" - TRACE N INSTRUCTIONS
00146A
F858
FB8C
A
FDB
TRACE
00147A
F85A
55
A
FCC
/u/
"U" - RESET A BREAKPOINT
00148A
F85B
FB4D
A
FDB
RSTBRK
00149A
F85D
53
A
FCC
/s/
"S" - SET A BREAKPOINT
00150A
F85E
FB59
A
FDB
SETBRK
00151A
F860
4F
A
FCC
lot
OFFSET CALCULATION
00152A
F861
FA9D
A
FDB
OFFSET
00153A
F863
51
.A
FCC
/Q/
QUICK LOAD
00154A
F864
F8FE
A
FDB
FASTLD
00155A
F866
45
A
FCC
/E/
EXAMINE BLOCK
00156A
F867
F88F
A
FDB
DISPLY
00157A
F869
46
A
FCC
/F/
00158A
F86A
F8E3
A
FDB
FILL
FILL BLOCK
00159A
F86C
56
A
FCC
/V/
VERIFY K.C. STANDARD TAPE
00160A
F86D
F9B9
A
FDB
VERIFY
00161A
F86F
5A
A
FCC
lit
CLEAR SCREEN
00162A
F870
F923
A
FDB
ZSCR
00163
F872
A
FCTBEN
EQU
*
PAGE 005 TVBUG46 .SA:0 TVBUG 1.2 A YDG MONITOR FOR 6800,01,02,03,08 SYSTEM
%0165 **********
J)166 * INITIALIZATION/RESET CODE
00167 * THIS DATA IS COPIED
00168
* INTO
RAM
DURING START-UP INITALIZATION
00169
*
00170
F872
A
ADRSTR
EQO
*
00171A
F872
F36F
A
FDB
STACK
INIT FOR "SP"
00172A
F874
FCE2
A
FDB
SWI1S
INIT FOR "SWIl"
00173A
F876
FD0C
A
FDB
BRKINH
INIT FOR "SWI2"
00174
*
00175A
F878
20
03 F87D
BRA
BRG
"BRA" INST IS REPLACED
00176A
F87A
7E
FD4A
A
JMP
BRNOGO
COND BRA INST IN ROUT.
00177A
F87D
7E
FD4E
A
BRG
JMP
BRGO
WHICH DETERMINES IF
00178
*
BRA IS GO/NOGO
00179A
F880
39
RTS
00180A
F881
39
RTS
00181A
F882
39
RTS
00182A
F883
39
RTS
00183A
F884
39
RTS
00184A
F885
39
RTS
00185A
F886
7E
FB20
A
JMP
CONTRL
00186A
F889
7E
FB20
A
JMP
CONTRL
00187A
F88C
7E
FB20
A
JMP
CONTRL
PAGE 006 TVBUG46 .SA:0 TVBUG 1.2 A VDG MONITOR FOR 6800,01,02,03,08 SYSTEM
00189
**********
00190
* EXAMINE BLOCK OF MEMORY
00191
* ACSII EQUIV
PRINTED
BENEATH
00192
* HEX BYTE
00193
* FROM START ADR TO
STOP ADR
00194
* FORMAT :
00195
* AAA A DDI DD2
00196
* AC1 AC2
00197
*
00198
* AAAA= ADDRESS
,DD=HEX !
DATA
00199"
* AC=ASCII CHAR (IF PRINTABLE)
00200
**********
00201A
F88F
BD
F96C A
DISPLY JSR
GETADR
00202
*
00203A
F892
BD
F99C A
NEWLIN JSR
PCRLF
00204A
F895
CE
F37C A
LDX
#BEGA
PRINT ADDRESS
00205A
F898
BD
F9B0 A
JSR
OUT4HS
00206
*
002 07A
F89B
FE
F37C A
LDX
BEGA
SET FOR 8 /LINE
00208A
F89E
C6
08 A
LDAB
#8
00209
*
00210A
F8A0
BC
F37E A
OUT DAT CPX
ENDA
MAIN LOOP
00211A
F8A3
27
06 F8AB
BEQ
ASCII
00212A
F8A5
BD
F9B2 A
JSR
OUT2HS
PRINT HEX BYTE
00213A
F8A8
5A
DECB
00214A
F8A9
26
F5 F8A0
BNE
OUTDAT
00215
*
00216
* NOW DO ASCII
00217
*
00218A
F8AB
BD
F99C A
ASCII JSR
PCRLF
00219A
F8AE
8D
26 F8D6
BSR
OUT5S
SKIP ADDRESS
00220A
F8B0
FE
F37C A
LDX
BEGA
00221A
F8B3
C6
08 A
LDAB
#8
00222
*
00223A
F8B5
A6
00 A
NEWCHR LDAA
0,X
00224A
F8B7
81
IF A
CMPA
#$1F
00225A
F8B9
2F
04 F8BF
BLE
OUTPRD
00226A
F8BB
81
60 A
CMPA
#$60
00227A
F8BD
2D
02 F8C1
BLT
OUTASC
00228A
F8BF
86
2E A
OUTPRD LDAA
# ' .
00229A
F8C1
8D
ID F8E0
ODTASC BSR
OUCH 4
00230A
F8C3
08
INX
00231A
F8C4
BC
F37E A
CPX
ENDA
00232A
F8C7
27
5D F926
BEQ
C3
00233
*
00234A
F8C9
8D
11 F8DC
MORE BSR
OUT2S
00235A
F8CB
5A
DECB
00236A
F8CC
26
E7 F8B5
BNE
NEWCHR
00237A
F8CE
FF
F37C A
STX
BEGA
00238A
F8D1
BD
FEE1 A
JSR
INC HI
00239A
F8D4
20
BC F892
BRA
NEWLIN
PAGE 007 TVBUG46 .SA:0 TVBOG 1.2 A VDG MONITOR FOR 6800,01,02,03,08 SYSTEM
$0241
*
y ] 02 42A
F8D6
8D
06 F8DE
OUT5S
BSR
OUT1S
00243A
F8D8
8D
04 F8DE
BSR
OUT1S
00244A
F8DA
8D
02 F8DE
BSR
OUT IS
00245A
F8DC
8D
00 F8DE
OUT2S
BSR
ODT1S
00246A
F8DE
86
20 A
OUT IS
LDAA
00247A
F8E0
7E
FFOF A
OUCH4
JMP
OOTCH1
63
PAGE 008 TVBUG46 .SA:0 TVBUG 1.2 A VDG MONITOR FOR 6800,01,02,03,08 SYSTEM
00249 *
00250 **********
00251 * FILL MEMORY BLOCK WITH KONSTANT
00252 **********
00253 *
00254A
F8E3
BD
F96C A
FILL
JSR
GETADR
00255A
F8E6
CE
FE63 A
LDX
fFILLMS
00256A
F8E9
BD
F995 A
JSR
PDATA1
00257A
F8EC
8D
3B F929
BSR
BADDR
0025l8A
F8EE
B6
F3CF A
LDAA
XLOW
002 5 9 A
F8F1
FE
F37C A
LDX
BEGA
00260
*
00261A
F8F4
BC
F37E A
FILL0
CPX
ENDA
00262A
F8F7
27
2D F926
BEQ
C3
00263A
F8F9
A7
00 A
STAA
0,X
00264A
F8FB
08
INX
00265A
F8FC
20
F6 F8F4
BRA
FILL0
B-B
PAGE 009 TVBUG46 .SA:0 TVBUG 1.2 A VDG MONITOR FOR 6800,01,02,03,08 SYSTEM
00267
•>268
-6269
00270
00271
00272A
00273
00274A
00275A
00276A
00277
00278A
00279
00280A
00281A
00282A
00283A
00284A
00285A
00286A
00287A
00288A
00289A
00290A
00291
00292
00293
*^2 94A
<r02 95A
* QUICK LOAD PRINTS ADDRESS ONCE
* PER LINE THEN ACCEPTS 8 HEX BYTES
* OF CODE & STORES IN MEMORY
*
F8FE 8D 6C F96C FASTLD BSR
F900 BD F99C
F903 CE F37C
F906 BD F9B0
F909 C6 08
A FAST0
A
A
*
A
F90B 8D 1C F92 9 FASTI
F90D FE F37C A
F910 B6 F3CF A
F913 A7 00 A
F915 08
F916 FF F37C A
F919 BC F37E A
F91C 27 08 F92 6
F91E 5A
F91F 26 EA F90B
F921 20 DD F900
*
F923 BD FFA8
F926 7E FB20
A ZSCR
A C3
JSR
LDX
JSR
LDAB
BSR
LDX
LDAA
STAA
INX
STX
CPX
BEQ
DECB
BNE
BRA
JSR
JMP
GETADR
PCRLF
#BEGA
OUT4HS
#8
BADDR
BEGA
XLOW
0,X
BEGA
ENDA
C3
FASTI
FAST0
IN IT
CONTRL
PRINT ADDR
GET BYTE &
SAVE IT
8-9
PAGE 010 TVBUG46 .SA:0 TVBUG 1.2. A VDG MONITOR FOR 6800,01,02,03,08 SYSTEM
00297
00298
00299
00300
00301
00302
00303
00304
00305
00306
00307
00308A
00309A
0031 OA
00311A
00312A
00313A
00314A
00315A
00316A
00317
00318
00319
00320A
00321A
00322A
00323A
00324A
00325A
00326A
00327A
00328A
00329
00330A
00331A
00332A
00333A
00334A
00335A
00336A
00337A
00338A
00339A
00340A
00341
00342A
00343A
00344A
00345A
00346A
**********
F929 7F F3C8
F92C 7F F3C9
F92F 37
F930 36
F931 86 FF
F933 B7 F3D2
F936 BD FEE1
F939 7C F3D2
F93C B7 F3D3
F93F
F941
F943
F945
F947
F949
F94B
F94D
F94F
F951
F952
F953
F954
F955
F957
F958
F95B
F95E
F95F
F961
80 30 A
2B 20 F963
81 09 A
2F OA F951
-81 11 A
2B 18 F963
81 16 A
2E 14 F963
80 07
r
48
48
48
48
C6
48
79
79
5A
26
20
BUILD ADDRESS
A,B UNCHANGED
INPUT HEX CHARS UNTIL NON-HEX
ENTERED THEN EXIT
COUNT # OF CHAR ENTERED
SAVE COUNT IN CHRCNT
STORE TERMINATION CHAR
IN TERMCH
ON EXIT X
**********
BADDR CLR
= (XHI) = (TEMP 2 )
TEMP 2
A
CLR
PSHB
PSHA
TEMP 2+1
A
LDAA
#$FF
ZERO CHARACTER
A
STAA
CHRCNT
COUNTER
A BAD0
JSR
INC HI
1 CHAR IN
A
INC
CHRCNT
BUMP CHAR CNT
A
STAA
TERMCH
SAVE TERMINATION
* CHECK FOR
*
SUBA
BMI
CMPA
BLE
CMPA
BMI
CMPA
BGT
SUBA
BAD 3
04
F3C9
F3C8
BAD!
A
A
F6
D3
F957
F936
F963 FE F3C8
F966 FF F3CE
F969 32
F96A 33
F96B 39
*
A BAD 2
A
ASLA
ASLA
ASLA
ASLA
LDAB
ASLA
ROL
ROL
DECB
BNE
BRA
LDX
STX
PULA
PULB
RTS
VALID HEX
#$30
BAD 2
#9
BAD3
#$11
BAD 2
#$16
BAD 2
#7
GOOD HEX
#4
TEMP2+1
TEMP 2
BAD1
BAD0
TEMP2
XHI
£-10
PAGE Oil TVBUG46 .SA:0 TVBUG 1.2 A VDG MONITOR FOR 6800,01,02,03,08 SYSTEM
.349 ***********
ljb350 * GET ADDRESS. .SEND PROMPT
00351 * FOR BEGIN & END ADDRESSES
00352 * STORES IN BEGA & ENDA
00353 * ON EXIT A=$D,B=0,X=(ENDA)
00354 *
00355
**********
00356A
F96C
CE
FE27 A GET ADR
LDX
#MCL4
00357A
F96F
8D
24 F995
BSR
PDATA1
00358A
F971
8D
B6 F929
BSR
BADDR
00359A
F973
FF
F37C A
STX
BEGA
00360
*
00361A
F976
CE
FE32 A
LDX
#MCL5
00362A
F979
8D
1A F995
BSR
PDATA1
00363A
F97B
8D
AC F929
BSR
BADDR
00364A
F97D
08
INX
00365A
F97E
FF
F37E A
STX
ENDA
00366A
F981
39
RTS
PAGE 012 TVBUG46 .SA:0 TVBUG 1. 2 A VDG MONITOR FOR 6800 , 01, 02 , 03 , 08 SYSTEM
00369 **********
00370 * OUTPUTS LEFT SIDE OF
00371 * BYTE AS ASCII HEX CHAR
00372 * ACCA IS KLOBBERED!
00373 **********
00374A F982 44 OUTHL LSRA OUT HEX LEFT BCD DIGIT
00375A F983 44 LSRA
00376A F984 44 LSRA
00377A F985 44 LSRA
00378 ***********
00379- . * OUTPUTS RIGHT SIDE AS ASCII HEX
00380 * KLOBBERS ACCA
00381 **********
00384A F986 84 OF
A OUTHR ANDA
00385A F988 8B 30 A
00386A F98A 81 39 A
00387A F98C 23 28 F9B6
00388A F98E 8B 07 A
00389A F990 20 24 F9B6
00391
00392
00393
00394
003 95
00396 ^
00397
00398A F992 8D
003 9 9A F994 08
00400A F995 A6
00401A F997 81
00402A F999 26 F7 F992
00403A F99B 39
ADDA
CMPA
BLS
ADDA
BRA
#$F
#$30
#$3 9
OUTCH
#$7
OUTCH
OUT HEX RIGHT BCD DIGIT
*
*
*
**********
* PRINT DATA POINTED AT BY X-REG
^ * ON EXIT A=4 , B=UNCHANGED, X POINTS AT EOT
**********
22 F9B6 PDATA2 BSR OUTCH
I NX
00 A PDATAl LDAA X
04 A CMPA #4
BNE PDATA2
RTS
STOP ON EOT
PAGE 013 TVBUG46 .SA:0 TVBUG 1.2 A VDG MONITOR FOR 6800,01,02,03,08 SYSTEM
00405
"»406
J6407
00408
00409A
00410A
00411A
00412A
00413A
00414
00415
00416"
00417
00418
00419
00420A
00421A
00422A
00423A
00424A
**********
* PRINT CR LP
* ACCA IS KLOBBERED!
**********
F99C FF F3CE A PCRLF STX XHI
F99F 86 0D A LDAA #$D
F9A1 8D 13 F9B6 BSR OUTCH
F9A3 FE F3CE A LDX XHI
F9A6 39 RTS
**********
* ON EXIT X=X+1
* BYTE IS PRINTED AS 2 HEX CHARACTERS
F9A7 A6 00 A OUT2H LDAA
F9A9 8D D7 F982 BSR
F9AB A6 00 A LDAA
F9AD 08 INX
F9AE 20 D6 F986 BRA
0,X OUTPUT 2 HEX CHAR
OUTHL OUT LEFT HEX CHAR
0,X PICK UP BYTE AGAIN
OUTHR OUTPUT RIGHT HEX CHAR AND RTS
00426 *
00427 *
00428 *
00429A F9B0 8D F5 F9A7 OUT 4HS BSR
00430A F9B2 8D F3 F9A7 OUT2HS BSR
00431A F9B4 86 20 A OUTS LDAA
m ^432A F9B6 7E FF0F A OUTCH JMP
0*0433 *
OUT2H OUTPUT 4 HEX CHAR +
OUT2H OUTPUT 2 HEX CHAR +
#$20 SPACE
OUTCH1 (BSR & RTS)
SPACE
SPACE
PAGE 014 TVBUG46 .SA:0 TVBUG 1.2 A VDG MONITOR FOR 6800,01,02,03,08 SYSTEM
00435
**********
00436
\J \J *T J \J
* VERIFY SET
V Jul IVXC JL • iuLiX
1 VERIFY
FLAG
00437
* THEN GO TO
LOAD
o o a ^ a
U Uft j O
************
004 3 9 A
8 6
01 A
vfptfy r.naa
VJCiJt\XJy X JLl4-/riri
if x
00440A
F9BB
B7
F3D4 A
STAA
VFLAG
Uult Xri
r 7 jdjcj
?0
0 3 FQP3
LOADO
0044?
*
00443
*
0 0444
V/ V 1 *X **
**********
0 0 44
*L0AD MEMORY
FROM KC
STANDARD
00446-
* TAPE..
00447
U \J t *± 1
* BEFORE BLOCK OF DATA STARTS
O AA A Q
* ALL BYTES
(EXCEPT
RUBOUT )
0044Q
1/ v *x *x .7
* ARE PRINTED AS ASCII CHARS
004 *v0
U U ft D U
* THIS WILL DISPLAY FILE TITLE
UUffc Dx
* IF ANY
004
* AFTER BLOCK BEGINS
EACH
OO A c; "3
* BLOCK READ
WILL PRINT A 'B' ON TV
00 A 5A
UUftOft
**********
004 5 5
F Q r* 0 71
LOAD EQU
*
O 04 R£71
OQpA
IE
E OU ft A
CLR
VFLAG
0 0 A K 1
U U ft D /
*
004 t^Pa
U U ft J Oil
r EiD±> A
LOADO LDX
#0FSET
AA A E Q TV
UUftDzJA
X?
On
ojD
#^ir% rri Q AC
BSR
PDATA1
A A A £ A 7A
UU40UA
rs A ■/■» A
JdjU
B 'QO Q 7A
r y ^ i7 A
JSR
BADDR
00461 A
U U*x O Xri
r -? wo
FF
f 3D 5 7i
£ OL/ D ri
STX
OFF ADR
AAA £9
U U ft O Z
*
A A A £ "3 71
U U ft O *3 A
T? Q r 1 !?
r j\~ej
OO
1 n 7i
X U yA
LDAA
#$10
DIV BY 1
00464A
F9DQ
B7
F 408 A
j. *t v o rx
STAA
ACIAS
004 6 5 A
uuiu Jri
E y U O
1 6
BILD TAB
o a a £ £ 71
U Uft 0 OA
XP Q r\ A
r y U *±
On
OJJ
op tr> 71 AT?
BSR
KCIN
004 67A
UUft O / ri
r -7JJD
Zjd
ED E -7 U J
BMI
BILD
A AA£Q71
U Uft O on
wans
on
OJJ
Uv# r -/ ISO
BSR
0UTCH
*
0 04 70 A
U Uft / UA
i?QnA
pi
v*x
FF 71
EE ri
CMPB
#$FF
UUfl /1A
r jU\~
0 £
Z 0
r D r 7Uj
BNE
BILD
00472A
F9DE
81
42 A
CMPA
#'B
FIND BEGIN
00473A
F9E0
27
06 F9E8
BEQ
RDBLCK
00474A
F9E2
81
47 A
CMPA
#'G
FIND END
00475A
F9E4
26
ED F9D3
BNE
BILD
00476A
F9E6
20
7D FA65
BRA
C5
PAGE 015 TVBOG46 .SA:0 TVBUG 1.2 A VDG MONITOR FOR 6800,01,02,03,08 SYSTEM
00478 *
^479 *
m A ft 0 A
*± Own
8D
\JLJ
24 FA0F
RDRLCK
ooa ft 1 a
UUtO Xrl
PQPA
TAR
o 04 ft 9 a
r -7 iljd
Rp
TMPD
XLNv^JD
00483A
F9EC
8D
20 FAOE
BSR
KCIN
START ADDR
00484A
P9EE
B7
F37P A
STAA
BEGA
004ft5 A
£ ? ri
ftn
Id FAOP
ID r nU£j
ID OJa
TCP TNT
£\V*» -LIN
00486A
P9P3
B7
F37D A
STAA
BEGA+1
U Ami VJXi ' ^
004ft7A
U U ft O / ri
r -7 r u
pp
P ^ 7P A
JUL/
TO Y
U U f* o OA
r .7 r n
ftn
70 T?AfiR
DCD
JDOJa
Annnpp
00489-
*
004 QO A
PQ PR
ftn
1 1 PA OP
O ID jUV*»I\
DOX\
KPTN
IW*, X1N
OO A Q1 2V
i?q i?n
7n
r JU ft A
\71? TIC
004 Q9 A
PA 00
^ o
0 9 7 A 04
a vitU
00493A
FA02
A7
00 A
STAA
o,x
00494A
FA04
Al
00 A
LOAD1
CMPA
o,x
00495A
FA06
26
58 FA60
BNE
LOAD 19
00496A
FA08
08
INX
00497A
FA09
5A
DECB
BYTE COUNT
00498A
FA OA
26
EF F9FB
BNE
STBLCK
00499A
FAOC
20
C5 F9D3
BRA
BILD
7/ 13- 1^
PAGE 016 TVBUG46 .SA:0 TVBDG 1.2 A VDG MONITOR FOR 6800,01,02,03,08 SYSTEM
00501 *
00502 * 1 CHAR IN FROM TAPE
00503 *
00504A FADE 8D OA FA1A KCIN BSR CHKESC
00505A FA10 B6 F408 A LDAA ACIAS
00506A FA13 47 ASRA
00507A FA14 24 F8 FAOE BCC KCIN
00508A FA16 B6 F409 A LDAA AC IAD
00509A FA19 3 9 RTS
00510 *
00511 * CHECK FOR ESCAPE KEY
00512- *
00513 *
00514
*
00515A
FA1A
36
CHKESC
PSHA
00516A
FA1B
B6
F404
A
LDAA
PIAAD
00517A
FA1E
84
7F
A
ANDA
#$7F
00518A
FA20
81
IB
A
CMPA
#$1B
00519A
FA22
26
03 FA27
BNE
CHK1
00 52 OA
FA24
7E
FAF3
A
JMP
ESC1
00521A
FA27
32
CHK1
PULA
00522A
FA28
39
RTS
00523
72.
PAGE 017 TVBUG46 .SA:0 TVBUG 1.2 A VDG MONITOR FOR 6800,01,02,03,08 SYSTEM
A AC O C
*
W 52 6
* CHANGE MEMORY (M AAAA DD NN)
I h c o *7
*
UUdzoA
nil
BD
TO A A Q TV
Fy 2 y a
PU» VTOTO
JSR
TO TV TO>rVT>
nnTT n k r^rvo t? c o
rJUlliU AJJUKboo
n n c o q a
UUDZ yA
t? a Or*
c AZU
TO TO
DU
r y a
ntrr« A
UiivaU
TO "D
O/-ITOT TO
OT*A Dm VTITTaT T TXTT?
AAC-J A*
U UOJ UA
TP A Of
r AZr
r*x?
U£i
to OC*XP A
LtU A
ffAnl
Ct rt\±vi± AUUs\
I? 7A *5 O
£ A JZ
nn
DU
riQD A TV
r y JdU a
JbK
/-vnrn AUC
UU1 ft no
AAC
UUj JZ
AACOOa
UUDo JA
1? A O C
r A J 3
I? V
E Cj
to *3/-» to tv
T n y
JuJJ A
Anl
irKXJN 1 UljiJ
AAC O yf 7\
r Aoo
dli
to a to A A
r jdZ A
JOK
vju x zno
L,vJIN IJCjIN 1 o
uuooda
7V Til
FAJB
uy
TO TO V
DEX
UU D O O
*
A A C O "7 A
UU5 3 7A
FA JC
BD
TO A A A TV
Fy 2 y A
TO "D
JbK
dAUUK
AACOQTl
UUd JoA
TO TV OTO
FA JF
TO TO
FE
TO O/"* A A
FJCA A
T TO V
LDX
SAVEX
GOT NEW
U Ujj y
*
A AC yi An
UU54UA
TO TV ^ O
FA4Z
/D
TO OT"\ A TV
FJD2 A
mom
/-% TTTO/ - ! XTm
CHRCNT
NEW DATA??
a ac yl 1 tv
U0541A
to tv vl C
FA45
A *7
2 7
A A TO A C A
0 9 FA50
BEQ
SKPSTR
NO! SKIP LOAD
A A C yl O A
U U04ZA
U» 7V A "7
r A4 /
TO /T
B 0
to ^r*x? a
F JCr A
T T> A A
VT A~VT*7
XLOW
Ktr\ onm txt
NO PUT IN
00543A
FA4A
A7
00 A
o m A A
STAA
A V
0 / X
XT TOTVT TO TV m A C
NEW DATA &
Aft C A An
00544A
FA4C
Al
A A n
00 A
CMPA
0 f X
CHECK
UU54 5A
TO TV A XT*
FA4E
a £
ZD
1 A to A C A
10 FAoO
BNE
T AH rv 1 A
LOADiy
to TV to r\Ti t m
BAD. # QUIT
A A C A C
00546
AAC A *7 TV
0054 7 A
FA50
Bo
F3D3 A
SKPSTR
LDAA
TERMCH
GOOD ST
AAC/
U Uj ft OA
T? 7A C *3
u o
± JN A
XT'!? xr*V *P
INCiAl i
AACyl Q A
U U54 yA
T? TV C A
FA54
Q 1
A A A
UA A
LMrA
if 9 UA
TT? T T? VT? o
AAC C A A
UU550A
TO TV C C
FA5o
O "7
27
TO Vl TO A AA"*
D4 FA2C
BEQ
CHG0
NEXT ADDR
UUDD1
*
\a C C O a
05 52A
FA5S
ol
C TO TV
5E A
TT? T7T3 ATDTD^MaT — rM?/^ TDT?M T?"K7m
lr UF AKKUW — Dr*UKr*MriN 1
<J 0553A
TO TV C TV
FA5A
A ^
26
A A TO A C C
0 9 FAo o
BNE
C5
AACC/A
UU D34A
r AX
uy
DEX
00555A
FA5D
09
DEX
00556A
FA5E
20
CC FA2C
BRA
CHG0
LAST ADDR
005 5 7A
FA60
CE
FE3C A
LOAD 19
LDX
#NCHG
00558A
FA63
8D
6F FAD 4
BSR
PD2
00559A
FA65
7E
FB20 A
C5
JMP
CONTRL
00560A
FA68
7E
FF0F A
0UTCH5
JMP
OUTCH1
73
8-17
PAGE 018 TVBUG46 .SA:0 TVBUG 1.2 A VDG MONITOR FOR 6800,01,02,03,08 SYSTEM
00562
**********
00563
*
ADD OFFSET
TO VALUE
r\ r\ t? f A
00564
*
A & B UNCHANGED
00565
*
OFFSET IS
IN B,A
00566
**********
00567A
PA6B
36
ADDOFF PS HA
00568A
PA6C
37
PSHB
00569A
FA6D
FF
F3C8
A
STX
TEMP2
A A t "J A
00570
00571A
FA70
P6
F3C8
A
LDAB
TEMP 2
00572A
FA73
B6
F3C9
A
LDAA
TEMP2+1
A A C T2u
00 5 73 A
FA76
BB
F3D 6
A
ADDA
OFFADR+1
00574A
FA79
F9
F3D5
A
ADCB
OFF ADR
00575A
FA7C
F7
F3C8
A
STAB
TEMP 2
00576A
FA7F
B7
F3C9
A
STAA
TEMP 2+1
00577
*
00578A
FA82
FE
F3C8
A
LDX
TEMP 2
00579A
FA85
33
PULB
00580A
FA86
32
PULA
00581A
FA87
39
RTS
PAGE 019 TVBUG46 .SA:0 TVBUG 1.2 A VDG MONITOR FOR 6800,01,02,03,08 SYSTEM
00583 *
*H0584 * NMI ENTRY
>)585 *
00586A
FA88
BF
F382
A NMI .
STS
SP
00587A
FA8B
BD
F99C
A
JSR
PCRLF
00588A
FA8E
86
42
A
LDAA
# 1 B
00589A
FA90
8D
D6 FA68
BSR
OUTCH5
00590A
FA92
BD
F9B4
A
JSR
OUTS
00591A
FA95
86
02
A
LDAA
#2
00592A
FA97
BD
FBA6
A
JSR
BRKSUB
00593A
FA9A
7E
FB98
A
JMP
PSTAK1
75
PAGE 020 TVBUG46 .SA:0 TVBUG 1.2 A VDG MONITOR FOR 6800,01,02,03,08 SYSTEM
00595
*
00596
*
OFFSET CALCULATES BRANCH
00597
*
00598A
FA9D
BD
F96C
A
OFFSET JSR
GETADR
005 9 9A
FAAO
CE
FE51
A
LDX
#OFSET
00600A
FAA3
8D
2F FAD 4
BSR
PD2
SEND MESSAGE
00601
*
00602A
FAA5
B6
F37F
A
LDAA
ENDA+1
CALCULATE
00603A
FAA8
F6
F37E
A
LDAB
ENDA
OFFSET
00604A
FAAB
BO
F37D
A
SUBA
BEGA+1
00605A
FAAE
F2
F37C
A
SBCB
BEGA
00606
*
00607A
FAB1
80
03
A
SUBA
#3
AND ADJUST
00608A
FAB 3
G2
00
A
SBCB
#0
00609A
FAB 5
B7
F3C7
A
STAA
TEMP+1
00610A
FAB8
F7
F3C6
A
STAB
TEMP
00611A
FABB
CE
F3C6
A
LDX
#TEMP
PRINT ADDR
00612A
FABE
36
PSHA
00613A
FABF
BD
F9B0
A
JSR
OUT4HS
00614
*
00615
*
CHECK PROPER RANGE
00616
*
00617A
FAC2
32
PULA
00618A
FAC3
49
ROLA
00619A
FAC4
59
ROLB
00620A
FAC5
CI
00
A
CMPB
#0
00621A
FAC7
27
9C FA65.
BEQ
C5
00622A
FAC9
CI
FF
A
CMPB
#$FF
00623A
FACB
27
98 FA65
BEQ
C5
00624A
FACD
CE
FE5A
A
LDX
#BADJP
TELL EM
00625A
FADO
8D
02 FAD4
BSR
PD2
IT'S BAD
00626A
FAD 2
20
91 FA65
BRA
C5
00627
00628A
FAD4
7E
F995
A
PD2 JMP
PDATA1
PAGE 021 TVBUG46 .SA:0 TVBUG 1.2 A VDG MONITOR FOR 6800,01,02,03,08 SYSTEM
00630
>0631
#0632
00633
00634
00635
00636
00637A
00638A
00639
00640A
00641A
00642A
00643A
00644A
00645
00646
00647
00648
00649A
00650A
00651A
00652A
00653
00654
00655
00656
" k 0657A
130658A
FAD 7
FADA
FADD
FADE
FAE.O
FAE1
FAE4
FAE6
FAE8
FAE9
FAEC
FAEE
FAFO
*
*
* CONSTANT INITIALIZATION
* S = POINTER TO ROM BYTES TO BE COPIED TO RAM
* X = POINTER TO RAM BYTES TO BE INITIALIZED
FAD7
8E F871
CE F382
A
A
A
START EQU
LDS
LDX
*
* ACTUAL CODE START
#ADRS TR-1 START OF CONSTANT DATA
#SP START OF RAM AREA
32
A7 00 A
08
8C F3A0 A
26 F7 FADD
6F 00 A
08
8C F3DA A
26 F8 FAE6
INILP1 PULA
STAA 0 , X
INX
CPX #BRANEN
BNE INILP1
*
* INITIALIZATION TO 0
* X HOLDS INDEX OF 1ST
*
INILP2 CLR 0,X
INX
CPX #ENDIN0
BNE INILP2
*
* SET CC SO WHEN WE 'GO' TO USER PGM THE
* INTERUPT MASK IS SET
GET NEXT CONSTANT BYTE
INIT NEXT RAM BYTE
UPDATE POINTER
END OF CONSTANT RAM AREA?
NO, CONTINUE INITIALIZATION
BYTE TO BE SET TO 0
CLEAR NEXT BYTE OF RAM
UPDATE INDEX
ANY MORE BYTES TO INIT?
NO, CONTINUE CLEARING
86 DO
B7 F370
A
A
LDAA
STAA
#$D0
STACK+1
PUT IN STACK TO BE PULLED
7?
PAGE 022 TVBUG46 . SA: 0 TVBUG 1.
A A /" /"* A
00660
*
00661
*
INITIALIZE
00662
*
& KEYBOARD
00663
*
00664A
FAF3
BE
F382
A
ESC1 LDS
00665A
PAF6
86
3C
A
LDAA
00666A
FAF8
B7
F421
A
STAA
00667A
FAFB
B7
F423
A
STAA
00668
*
00669A
FAFE
86
03
A
LDAA
00670A
FBOO
B7
F408
A
STAA
00671
00672
IS
CONFIGURE
00673
•k
00674A
FB03
7F
t«i A A f
F406
A
CLR
00675A
FB06
7F
F404
A
CLR
00676A
FB09
86
04
A
LDAA
A A C *7 -ftk.
00677A
FBOB
B7
Tt A A C
F405
A
STAA
00678A
FBOE
B7
F407
A
STAA
00679
*
A A C O A "A
FB11
BD
TUTS Ik O
FFAo
A
JSR
00681A
FB14
CE
FDDD
A
LDX
00682A
FB17
BD
F995
A
JSR
00683A
FB1A
CE
FA88
A
LDX
00684A
FB1D
FF
F380
A
STX
00685
*
2 A VDG MONITOR FOR 6800 , 01 , 02 , 03 ,£8 SYSTEM
KC TAPE ACIA
PIA
SP
#$3C
KEYAC KILL HEX KEYBRD & TRACE
KEYBC FOR D2 KIT
#3
ACIAS KILL KC TAPE
PIA FOR VDG & ASCII KBD
PIABD
PIAAD
#4
PIAAC
PI ABC
INIT CLEAR SCREEN
#MCL2 PRINT HEADER
PDATA1 PRINT DATA STRING
#NMI INIT PDN
NIO
PAGE 023 TVBUG46 .SA:0 TVBUG 1.2 A VDG MONITOR FOR 6800,01,02,03,08 SYSTEM
00687
*
-90688
*
MAIN COMMAND /CONTROL
LOOP
^0689
*
00690
FB20
A
CONTRL EQU
*
00691
*
00692
RESTORE STACK POINTER REGISTER
00693
*
00694A
FB20
BE
F382
A
LDS
SP
SP WAS INITIALIZED EARLIER
00695A
FB23
CE
FE49
A
LDX
# READY
00696A
FB26
8D
AC FAD 4
BSR
PD2
00697
*
00698
*
00699
*
00700A
FB28
BD
FEE1
A
JSR
INCH1
READ COMMAND CHARACTER
00701A
FB2B
16
TAB
SAVE CHARACTER IN B
00702A
FB2C
BD
F9B4
A
JSR
OUTS
PRINT SPACE AFTER COMMAND
00703
*
00704
*
B REGISTER
HOLDS CHARACTER INPUT BY USER.
00705
*
USE JUMP TABLE TO GO
TO APPROPRIATE ROUTINE.
00706
*
00707A
FB2F
CE
F833
A
LDX
#FCTABL
X:= ADDRESS OF JUMP TABLE
00708A
FB32
El
00
A
NXTCHR CMPB
0,X
DOES INPUT CHAR MATCH?
00709A
FB34
27
OA FB40
BEQ
GOODCH
YES, GOTO APPROPRIATE ROUTINE
00710A
FB36
08
INX
ELSE, UPDATE INDEX INTO TABLE
00711A
FB37
08
INX
00712A
FB38
08
INX
00713A
FB39
8C
F872
• A
CPX
#FCTBEN
END OF TABLE REACHED?
V 0714A
FB3C
26
F4 FB32
BNE
NXTCHR
NO, TRY NEXT CHAR
o0715A
FB3E
20
EO FB20
BRA
CONTRL
NO MATCH, REPROMPT USER
00716
*
00717
*
00718A
FB40
EE
01
A
GOODCH LDX
1,X
GET ADDRESS FROM J.T.
00719A
FB42
6E
00
A
JMP
0,X
GOTO APPROPRIATE ROUTINE
00720
*
00721
*
00723 *
00724 *
00725A FB44 7E F929 A BADDRJ JMP BADDR GO BUILD ADDRESS
79
PAGE 024 TVBDG46 .SA:0 TVBUG 1.2 A VDG MONITOR FOR 6800,01,02,03,08 SYSTEM
00727
00728
00729
00730
00731A
00732A
00733A
00734
00735
00736
00737A
0073"8
00739A
00740A
00741
00742
00743
00744A
00745A
00746A
00747
00748
00749
00750A
00751A
00752A
00753A
FB47 86 01 A
FB49 8D 5B FBA6
FB4B 20 56 FBA3
FB4D 8D F5 FB44
*
*
* RESET ALL BREAKPOINTS
DELBRK LDAA #1
BSRBRK BSR BRKSDB
BRA CNTRL2
* RESET 1 BREAKPOINT
RSTBRK BSR BADDRJ
RESET BREAKS FLAG
BREAK HANDLING SUBR.
RETURN TO COMMAND LEVEL
FB4F 4F
FB50 20 F7 FB49
FB52 BD F99C A
FB55 86 02 A
FB57 20 F0 FB49
FB59 8D E9 FB44
FB5B 86 04 A
FB5D 8D 47 FBA6
FB5F 20 Fl FB52
CLRA
BRA
BSRBRK
PUTS USER ENTERED ADDRESS
INTO XHI,XLOW
RESET 1 BREAK FLAG
GO RESET 1
* PRINT OUT ALL NON-ZERO BREAK ADDRESSES
*
PNTBRK JSR PCRLF
LDAA #2
BRA BSRBRK
DO CR/LF
PRINT BREAK ADDRESSES FLAGS
GO PRINT
* SET ONE BREAK
*
SETBRK BSR BADDRJ
LDAA #4
BSR BRKSUB
BRA PNTBRK
GET USER ENTERED ADDRESS (XHI,XLOW
SET ONE BREAK FLAG
GO SET IT
PRINT ALL BREAKPOINTS
Bo
\-*4
PAGE 025 TVBUG46 .SA:0 TVBUG 1.2 A VDG MONITOR FOR 6800,01,02,03,08 SYSTEM
00755
*
>,0756
* GO TO REQUESTED
^0757
*
00758A
PB61
8D
El FB44
GOTO
BSR
BADDRJ
GO GET ADDRESS FROM USER
00759
*
XHI, XLOW HOLD ADDRESS
00760A
FB63
86
FF
A
LDAA
#$FF
FLAG FOR PUTTING IN BREAKS
00761A
FB65
8D
3F FBA6
BSR
BRKSUB
GO PUT IN BREAKS
00762A
FB67
30
TSX
00763A
FB68
B6
F3CE
A
LDAA
XHI
SAVE PCH ON STACK
00764A
FB6B
A7
05
A
STAA
5,X
00765A
FB6D
B6
F3CF
A
LDAA
XLOW
PSH PCL
0076"5A
FB70
A7
06
A
STAA
6,X
00767A
FB72
3B
RTI
GO TO USER PRG
00768
*
00769
* SINGLE INSTRUCTION TRACE REQUESTED
00770
*
00771A
FB73
CE
0001
A
NEXT
LDX
#1
# INSTRUCTIONS TO TRACE
00772A
FB76
7F
F3D9
A
TRACE 2
CLR
BRKTRC
CLEAR FLAG INDICATING TRACE
00773
*
IS DUE TO BREAK
00774A
FB79
FF
F3A3
A
TRACE 3
STX
NT RACE
SAVE # INST'S TO TRACE
00775A
FB7C
FE
F382
A
LDX
SP
X : = STACK POINTER
00776A
FB7F
EE
06
A
LDX
6,X
X : = INSTR TO BE EXECUTED
00777A
FB81
FF
F3A0
A
STX
TRCADR
SAVE IN TRACE ADDRESS STORE
00778A
FB84
A6
00
A
LDAA
0,X
GET INSTRUCTION TO BE TRACED
00779A
FB86
B7
F3A2
A
STAA
TRCINS
SAVE IN INSTRUCTION STORE
00780A
FB89
7E
FD37
A
JMP
CONTRC
CONTINUE TRACE PART OF PROGRAM
00781
1)782
*
* MULTIPLE INSTRUCTION
TRACE
tf0783
*
00784A
FB8C
8D
B6 FB44
TRACE
BSR
BADDRJ
GET # OF INSTRUCTIONS TO TRACE
00785A
FB8E
20
E6 FB76
BRA
TRACE 2 '
GO TRACE' M
00786
*
00787
* CONTINUE EXECUTION
00788
*
00789A
FB90
7C
F3D9
A
CONT
INC
BRKTRC
TRACE 1 TO RESTORE SWI'S
00790A
FB93
CE
0001
A
LDX
#1
ONE TRACE ONLY
00791A
FB96
20
El FB79
BRA
TRACE 3
00792
*
00793
*
00794
* R COMMAND
00795
*
00796
* PRINT STACK
CONTENTS
00797
*
00798A
FB98
BD
F99C
A
PSTAK1
JSR
PCRLF
PRINT CR LF
00799A
FB9B
CE
FE11
A
LDX
#MCL3
PRINT HEADER
0080 OA
FB9E
BO
F995
A
JSR
PDATA1
00801A
FBA1
8D
7B FC1E
BSR
PRINT
PRINT STACK
00802A
FBA3
7E
FB20
A
CNTRL2
JMP
CONTRL
RETURN TO COMMAND LEVEL
PAGE 026 TVBUG46 .SA:0 TVBUG 1. 2 A VDG MONITOR FOR 6800, 01, 02, 03, 08 SYSTEM
00804 **********
00805 *
00806 * BRKSUB
00807 *
00808 *
00809 * THIS ROUTINE DOES A NUMBER OF OPERATIONS HAVING
00810 * TO DO WITH BREAKPOINTS.
00811 *
0 0812 * THE A REGISTER DETERMINES FUNCTION PERFORMED:
00813 *
00814 * A = -1 =" BREAKS ARE PUT INTO USER'S CODE
0081-5 * A - 0 =" THE BREAKPOINT WHOSE ADDRESS IS IN
00816 * XHI, XLOW IS PURGED;
00817 * ALL BREAKPOINTS ARE TEMPORARILY REMOVED
00818 * A = 1 = " ALL BREAKPOINTS ARE PURGED
00819 * A = 2 =" ALL BREAKPOINTS ARE PRINTED OUT
00820 * ALL BREAKPOINTS ARE TEMPORARILY REMOVED
00821 * A = 3 =" ALL BREAKPOINTS ARE TEMPORARILY REMOVED
00822 * A = 4 =" THE BREAK ADDRESS IN XHI, XLOW IS
00823 * PUT INTO THE FIRST ZERO BREAKPOINT
00824 * POSITION; ALL BREAKS ARE TEMPORARILY REMOVED
00825 *
00826 **********
00827 *
00828 FBA6 A BRKSUB EQU *
00829A FBA6 BF F3D0 A STS SSAVE SAVE S SO WE CAN USE
0083 OA FBA9 B7 F3C5 A STAA ASAVE A HOLDS THE FUNCTION #
00831 *
00832A FBAC CE F3A5 , A LDX fBRKADR INIT X FOR LOOP THROUGH BREAKS
00833 *
00834 * START OF LOOP THROUGH BREAK ADDRESSES
00835 *
00836A FBAF B6 F3C5 A BRKLP LDAA ASAVE GET FUNCTION #
00837A FBB2 AE 00 A LDS 0,X S:=NEXT ADDRESS IN BRKPT LIST
00838A FBB4 27 2D FBE3 BEQ LN IF 0, THEN NOT A VALID BREAK
00839 *
00 84 OA FBB6 7D F3D8 A TST BRKSIN ARE BREAKS IN USER'S CODE?
00841A FBB9 27 36 FBFl BEQ NOBRIN BRANCH, IF NOT
00842 *
00843 - * BREAKS ARE IN USER'S CODE
00844 ' *
00845A FBBB 4D TSTA SHOULD BREAKS BE IN?
00846A FBBC 2B 21 FBDF BMI BKDONE YES, RETURN TO CALLER
00847 *
00848 * BREAKS ARE TO BE TAKEN OUT OF USER'S
00849 * CODE TEMPORARILY
00850 *
00851A FBBE A6 10 A LDAA 2*NBRBPT,X GET INSTR. BELONG-
00852 * ING IN USER CODE
00853A FBCO 36 PSHA PUT IT THERE
<3*
PAGE 027 TVBUG46 .SA:Q TVBUG 1.2 A VDG MONITOR FOR 6800,01,02,03,08 SYSTEM
00855 *
£0856 * OTHER ACTIONS TO BE PERFORMED EACH TIME THROUGH
10857 * LOOP WHEN BREAK ADDRESS NOT EQUAL TO 0.
"00858 *
A A O C A 71
0 085 9A
FBC1
B6
F3C5
A
BKC0N1
LDAA
ASAVE
# OF B
U UOOUA
TPTir' A
r oUft
z /
37
FBFD
BEQ
FNDRPL
SEE IF BREAKPOINT NEEDS TO
UUODl
*
BE REPLACED
U (Job AK
FBCb
O 1
81
01
A
CMPA
#1
IS BRK ADDRESS TO BE RESET?
y UOD jrt
r dv^ o
9 7
41
FC0B
BEQ
CLRBRK
YES, SET BRK ADR TO 0
U U O O ft
*
U UoDDA
b bua
Q 1
ol
02
A
CMPA
|2
IS BRK ADDR TO BE PRINTED?
U U OQ.OA
0 7
Z /
49
FC17
BEQ
PRNTBK
YES, GO PRINT ADDRESS
OOoo /
*
A A O £ O
0 0 868
* UPDATE LOOP
INDEX AND LOOP IF APPROPRIATE
0086 y
*
00870A
FBCE
A O
08
BKC0N2
INX
MAKE X POINT TO
00871A
FBCF
08
INX
NEXT BREAK ADDRESS
00872A
FBD0
8C
F3B5
A
BKC0N3
CPX
#BRKINS
ANY MORE BREAKS?
00873A
FBD3
26
DA
FBAF
BNE
BRKLP
YES, LOOP
00874
*
a n t r
00875
* WRAP-
-UP PROCESSING
AND EXIT
A A O *7 ^
00876
*
00877A
FBD5
4F
CLRA
A = BREAKS IN FLAG
00878A
FBD6
7D
F3C5
A
TST
ASAVE
IS FUNCTION = -1?
00879A
FBD9
2A
01
FBDC
BPL
BKPUT
NO, SO BRKSIN * 0
00880A
FBDB
4C
INCA
FCTN = -1 = " BRKSIN: =1
00881A
FBDC
B7
F3D8
A
BKPUT
STAA
BRKSIN
STORE APPROPRIATE FLAG
„00882
*
;0883
* RESTORE S-REG AND RETURN TO CALLER
00884
*
00885A
FBDF
BE
F3D0
A
BKDONE
LDS
SSAVE
RESTORE USER S-REG
00886A
FBE2
39
RTS
RETURN
85
PAGE 028 TVBUG46 .SA:0 TVBUG 1.2 A VDG MONITOR FOR 6800,01,02,03,08 SYSTEM
00888 *
00889 * MISCELLANEOUS ROUTINES FOR BRKSUB
00890 *
008 91 * BREAKPOINT ADDRESS = 0 - IF FUNCTION = 4 THEN
00892 * PUT BREAKPOINT ADDRESS IN CURRENT POSITION
00893 * A HOLDS THE FUNCTION #, X HOLDS BREAKPOINT INDEX
00894 *
00895A FBE3 81 04 A LN CMPA #4 IS FUNCTION = 4
00896A FBE5 26 E7 FBCE BNE BKCON2 IF NOT, THEN CONTINUE LOOP
00897 *
00898A FBE7 BE F3CE A LDS XHI GET NEW BREAK ADDRESS
0089~9A FBEA AF 00 A STS 0,X PUT IN CURRENT POSITION
00900 *
00 901A FBEC 7A F3C5 A DEC ASAVE DO NOT PLACE ADDRESS MORE
00902 * THAN ONCE-CONT TO
00903 * TAKE OUT BREAKPOINTSo
00904A FBEF 20 DD FBCE BRA BKCON2 CONTINUE LOOP
PAGE 029 TVBUG46 .SA:0 TVBUG 1.2 A VDG MONITOR FOR 6800,01,02,03,08 SYSTEM
00906
*
f 0 90 7
* BREAKS ARE
NOT IN AND ADDRESS IS NON-ZERO.
$0908
* IF FUNCTION = -1 THEN SWI'S ARE TO BE PUT IN.
00909
* A HOLDS FUNCTION NUMBER, S HOLDS ADDRESS
00910
*
00911A
FBF1
4D
NOBRIN TSTA
00912A
FBF2
2A
CD
FBC1
BPL
BKCON1
NO, CONTINUE
00913
*
0 0 914A
FBF4
O A
34
DES
MAKE ADDRESS POINT TO 1 LESS
00915A
FBF5
32
PULA
GET USER INSTRUCTION
00916A
FBF6 *
A7
10
A
STAA
2*NBRBPT
,X SAVE
009£7A
FBF8
86
3F
A
LDAA
#SWI
GET SWI OP CODE
00918A
FBFA
36
PSHA
REPLACE USER INSTRUCTION
00919A
FBFB
20
Dl
FBCE
BRA
BKCON2
CONTINUE LOOP
A A A *"> A
00920
it
00921
* FUNCTION=0
, BRK ADDR
NOT = 0, USER'S INSTR
00922
* IS IN (NOT
SWI) .
A A A O O
0092 J
* IF ADDRESS
= XHI,XLO
THEN SET ADDRESS = 0
00924
0092 5A
FBFD
A6
00
A
FNDRPL LDAA
0,X
GET TOP BYTE OF ADDRESS
00926A
FBFF
Bl
F3CE A
CMPA
XHI
DO TOP BYTES COMPARE
00927A
FC02
26
CA
FBCE
BNE
BKCON2
NO, CONTINUE LOOP
00928A
FC04
E6
01
A
LDAB
1,X
GET LOW BYTE OF ADDR
00929A
FC06
Fl
F3GF A
CMPB
XLOW
SAME FOR LOW BYTES
00930A
FC09
26
C3
FBCE
BNE
BKCON2
00931
*
00932A
FC0B
6F
00
A
CLRBRK CLR
0,X
CLEAR OUT BREAK
^0933A
FC0D
6F
01
A
CLR
i,x
ADDRESS FIELD
O0934A
FC0F
20
BD
FBCE
BRA
BKCON2
CONTINUE LOOP
A A A O C
0093 5
*
00936
it
00937A
FC11
7E
F9B2 A
OT2HS JMP
OUT2HS
0093 8A
FC14
7E
F9B0 A
OT4HS JMP
OUT4HS
00939
*
00940
* PRINT OUT !
BREAK ADDRESS
00941
* FUNCTION =
2, BREAK
ADDRESS NOT = 0, X = ADDRESS INDEX
00942
*
00943A
FC17
BE
F3D0 A
PRNTBK LDS
SSAVE
00944A
FC1A
8D
F8
FC14
BSR
OT4HS
OUTPUT ADDRESS AND SPACE
00945A
FC1C
20
B2
FBD0
BRA
BKCON3
OUT4HS INCREMENTS X,
00946
it
SO BYPAS 2 INX'S
PAGE 030 TVBUG46 .SAsO TVBUG 1.2 A VDG MONITOR FOR 6800,01,02,03,0-8 SYSTEM
00948 *
00949 * PRINT CONTENTS OF STACK
00950 *
00951A
FC1E
BD
F99C A PRINT
JSR
PCRLF
PRINT CR LF
00952A
FC21
FE
F382 A
LDX
SP
PRINT OUT STACK
00953A
FC24
08
INX
00954A
FC25
8D
EA FC11
BSR
OT2HS
CONDITION CODES
00955A
FC27
8D
E8 FC11
BSR
OT2HS
ACC-B
00956A
FC29
8D
E6 PC 11
BSR
OT2HS
ACC-A
00957A
FC2B
8D
E7 FC14
BSR
OT4HS
X-REG
00958A
FC2D
8D
E5 FC14
BSR
OT4HS
P-COUNTER
009S9A
FC2F
CE
F382 A
LDX
#SP
00960A
FC32
8D
E0. FC14
BSR
OT4HS
STACK POINTER
00961A
FC34
39
RTS
PAGE 031 TVBUG46 .SA:0 TVBUG 1.2 A VDG MONITOR FOR 6800 , 01, 02 , 03, 08 SYSTEM
00963
00964
^)0965
00966
00967
00968
00969
00970A
00971A
00972A
00973
00974A
00975A
00976A
00977A
00978A
00979A
00980A
00981A
00982A
00983A
FC35 BD F96C
FC38 09
FC39 FF F37E
FC3C CE FFED
FC3F BD F995
FC42 CE F3DA
FC45 BD FEE1
FC48 A7 00
FC4A 08
FC4B 81 0D
FC4D 26 F6 FC
FC4F 86 04
FC51 A7 00
**********
* PUNCH DUMP
* PUNCH FROM BEGINING ADDRESS (BEGA) THRU ENDING
* ADDRESS (ENDA)
**********
* FIRST GET START & END ADDRESS
*
A
PUNCH
JSR
GETADR
DEX
A
*
STX
ENDA
A
LDX
#HEADMS GET TITLE
A
JSR
PDATA1
A
LDX
fHEADBF
A
PUN 00
JSR
INCH1
A
STAA
0,X
INX
A
CMPA
#$D
15
BNE
PUN 00
A
LDAA
#4
A
STAA
o,x
3-31
PAGE 032 TVBUG46 .SA:0 TVBUG 1.2 A VDG MONITOR FOR 6800 , 01 , 02 , 03 , 08 SYSTEM
00985 *
00986
* NOW I
START
PUNCH
00987
*
00988A
FC53
86
51 A
LDAA
#$51
8 BIT, 2 STOP DIV
00989A
FC55
B7
F408 A
STAA
AC IAS
RTS NOT HI
00990A
FC58
CE
03FF A
LDX
#$03FF
00991 A
FC5B
8D
7D FCDA
BSR
PNLDR
00992A
FC5D
86
80 A
LDAA
#$80
00993A
FC5F
8D
58 FCB9
BSR
KCOUT
00994A
FC61
CE
F3DA A
LDX
IHEADBF
00995A
FC64
8D
6D FCD3
PUND05
BSR
PUN
00996A
FC66
81
OD A
CMPA
#$D
00997A
FC68
26
FA FC64
BNE
PUND05
00 9 98 A
FC6A
86
FF A
LDAA
#$FF
00999A
FC6C
8D
4B FCB9
BSR
KCOUT
01 00 OA
FC6E
F6
F37F A
PUND10
LDAB
ENDA+1
01001A
FC71
FO
F37D A
SUBB
BEGA+1
01002A
FC74
B6
F37E A
LDAA
ENDA
01003A
FC77
B2
F37C A
SBCA
BEGA
01004A
FC7A
27
02 FC7E
BEQ
PUND25
01005A
FC7C
C6
FF A
LDAB
' #$FF
#*B
01006A
FC7E
86
42 A
PUND25
LDAA
PUNCH A B
01007A
FC80
8D
37 FCB9
BSR
KCOUT
01008A
FC82
37
PSHB
01009A
FC83
30
TSX
01010A
FC84
8D
4D FCD3
BSR
PUN
01011A
FC86
32
PULA
BYTE COUNT
01012A
PC 8 7
4C
INCA
01013A
FG88
B7
F3D2 A
STAA
CHRCNT
01014A
FC8B
CE
F37C A
LDX
#BEGA
PUNCH ADDRESS
01015A
FC8E
8D
43 FCD3
BSR
PUN
01016A
FC90
8D
41 FCD3
BSR
PUN
01017A
FC92
FE
F37C A
LDX
BEGA
PUNCH DATA
8ft f>-^
PAGE 033 TVBUG46 .SA:0 TVBUG 1.2 A VDG MONITOR FOR 6800,01,02,03,08 SYSTEM
01019A
FC95
8D
3C FCD3
PUND30 BSR
PUN
>U020A
FC97
7A
F3D2
A
DEC
CHRCNT
^1021A
FC9A
26
F9 FC95
BNE
PUND30
01022A
FC9C
FF
F37C
A
STX
BEGA
01023A
FC9F
CE
0096
A
LDX
#$96
01024A
FCA2
8D
36 FCDA
BSR
PNLDR
150 l'S
01025A
FCA4
FE
F37C
A
LDX
BEGA
01026A
FCA7
09
DEX
01027A
FCA8
BC
F37E
A
CPX
ENDA
01028A
FCAB
26
CI FC6E
BNE
PUND10
01029A
FCAD
86
47
A
LDAA
#'G
01030A
FCAF
8D
08 FCB9
BSR
KCOUT
PUNCH END CHAR
01031A
FCB1
CE
0019
A
LDX
#$19
01032A
FCB4
8D
24 FCDA
BSR
PNLDR
01033A
FCB6
7E
FB20
A
JMP
CONTRL
01034
*
01035
♦SUBROUTINE TO PUNCH A
BYTE
01036
* BYTE IS DISPLAYED ON
TV AS 2 HEX
01037
* NO REGISTER
CHANGED
01038A
FCB9
37
KCOUT PSHB
01039A
FCBA
BD
FA1A
A
KC1 JSR
CHKESC
01040A
FCBD
F6
F408
A
LDAB
AC IAS
READY???
01041A
FCCO
57
ASRB
01042A
FCC1
57
ASRB
01043A
FCC 2
24
F6 FCBA
BCC
KC1
01044A
FCC 4
B7
F409
A
STAA
AC IAD
.01045A
FCC 7
33
PULB
51046A
FCC 8
36
PSHA
''01047A
FCC9
BD
F982'
A
JSR
OUTHL
SEND BYTE ( IN HEX)
01048A
FCCC
32
PULA
TO VDG DISPLAY
01049A
FCCD
36
PSHA
01050A
FCCE
BD
F986
A
JSR
OUTHR
01051A
FCD1
32
PULA
01052A
FCD2
39
RTS
01053
*
01054
*SUB TO PUNCH
1 BYTE POINTED BY X REG
01055
* X=X+1
01056
* BYTE FETCH FROM MEMORY IS IN SYNC
01057
* WITH TV RETRACE
01058A
FCD3
BD
FE86"
A
PUN JSR
SYNCLD
01059A
FCD6
8D
El FCB9
BSR
KCOUT
01060A
FCD8
08
I NX
01061A
FCD9
39
RTS
01062
*
01063
* PUNCH LEADER
01064
*
01065A
FCDA
86
FF
A
PNLDR LDAA
#$FF
01066A
FCDC
8D
DB FCB9
BSR
KCOUT
01067A
FCDE
09
DEX
01068A
FCDF
26
F9 FCDA
BNE
PNLDR
01069A
FCE1
39
RTS
01070
*
PAGE 034 TVBUG46 .SA:0 TVBUG 1.2 A VDG MONITOR FOR 6800,01,02,03,08 SYSTEM
01072
01073
01074
01075
01076
01077A
01078
01079A
01 080 A
01081
01082
01083
01084A
01085A
01086A
01087A
01088A
01089
01090
01091
01092A
01093A
01094A
01095
01096A
01097A
01098A
01099
01100
01101
01102A
01103A
01104A
01105A
01106
01107A
01108A
01109
OHIO
01111
01112
01113
01114
01115
01116A
01117A
*
*
* SWI-1 SOFTWARE INTERRUPT LEVEL 1 PROCESSING
*
FGE2 A
FCE2 BF F382 A
FCE5 86 03 A
FCE7 BD FBA6 A
FCEA 30
FCEB 6D 06 A
FCED 26 02 FCFl
FCEF 6A 05 A
FCFl 6A 06 A
FCF3 EE 05 A
FCF5 BC F3A0 A
FCF8 27 18 FD12
FCFA A6 00 A
FCFC 81 3F A
FCFE 26 OC FDOC
FDOO 30
FD01 6C 06 A
FD03 26 02 FD07
FD05 6C 05 A
SWI IS EQU
STS
*
LDAA
JSR
FD07 FE F386
FDOA 6E 00
A
A
FDOC
FDOC BD FC1E
FDOF 7E FB20
*
SP
#3
BRKSUB
* DECREMENT P-COUNTER
*
TSX
TST
BNE
DEC
SWI1S1 DEC
6,X
SWI1S1
5, X
6, X
SAVE USER'S SP
GO TAKE OUT ALL BREAKS
X: -STACK POINTER - 1
IF LOWER BYTE = 0 =" BORROW
BRANCH IF BORROW NOT REQ'D
DECREMENT UPPER BYTE
DECREMENT LOWER BYTE
* TEST FOR ADDRESS TRACE OR BREAK
LDX 5,X X:=P COUNTER
CPX TRCADR IS SWI FOR TRACE?
BEQ TRCINH YES, GO TO TRACE INT HANDLER
*
LDAA 0,X GET INSTRUCTION CAUSING SWI
CMPA #SWI WAS IT REPLACED BY CALL BREAKOUT
t BNE BRKINH YES, SO MUST BE A BREAK
*
* USER SWI-TRANSFER THROUGH LEVEL 2 SWI
*
TSX
INC
BNE
INC
*
INCNOV LDX
JMP
*
*
*
X:=STACK POINTER
6,X UPDATE LOW BYTE OF P-COUNTER
INCNOV BRANCH IF NO CARRY
5,X UPDATE HIGH BYTE IF NECESSARY
SWI2 X:=PO INTER TO LEVEL 2 SWI HANDLER
0,X GO TO LEVEL 2 HANDLER
* BREAK INTERRUPT HANDLER
A
A
A
BRKINH EQU
JSR
CTRL JMP
PRINT STOP AND SHOW REGS TO USER
CONTRL RETURN TO CONTROL LOOP
PAGE 035 TVBUG46 .SA:0 TVBUG 1.2 A VDG MONITOR FOR 6800,01,02,03,08 SYSTEM
A 1 1 1 A
01119
*
A -1 1 *> A
01120
*
TRACE INTERRUPT HANDLER
U1121
*
P-COUNTER
HAS BEEN DECREMENTED TO POINT AT SWI
01122
*
TRCINS HOLDS OP CODE
REPLACED BY SWI
01123
X HOLDS ADDRESS OF WHERE TRACE SWI IS
A 1 1 1 >l
U11Z4
A 1 1 O C TV
01125A
FulZ
Bo
F3A2
A
TRCINH LDAA
TRCINS
GET OP CODE OF TRACED INSTR
OllzbA
FDlO
7V *7
A /
00
A
STAA
0,X
RESTORE TO USER'S CODE
n 1 1 9 Pa
U JLX Z On
r jjx /
7n
F3D9
A
morn
lb 1
BRKTRC
IS PROCESSING TO BE
A 1 1 0 Q
uiizy
IMMEDIATELY CONTINUED?
A 1 1 *3 A7V
U llOUA
TTlpV 1 TV
c JJlA
7 7
OF FD2B
BEQ
NBKTRC
BRANCH IF NOT
01131
*
01132
*
PROCESSING
IS TO "CONTINUE"
01133
*
01134A
FD1C
7F
F3D9
A
CLR
BRKTRC
RESET CONTINUE FLAG
01135A
FD1F
86
FF
A
LDAA
#$FF
FLAG TO SET BREAKS IN CODE
A 1 1 O ^ TV
01136A
FD21
BD
FBA6
A
JSR
BRKSUB
PUT BREAKS IN
A 1 1 O "7 TV
01137A
FD24
7F
F3A0
A
CLR
TRCADR
NO MORE TRACE, SO CLEAR ADDRESS
A 1 1 O O TV
01138A
tin O 1
FD27
7F
F3A1
A
CLR
TRCADR+1
£ JJZA
JD
RTI
CONTINUE
A 1 1 Vl A
U114U
A 1 1 Vl 1
01141
*
TRACE IS DUE TO N OR
T TRACE COMMANDS
A 1 1 vl "3 7V
0114 JA
FDzB
BD
FC1E
A
NBKTRC JSR
PRINT
PRINT. STACK
A 1 1 Vf Vl TV
01144A
FD2E
FE
F3A3
A
LDX
NT RACE
GET # INSTRUCTIONS TO TRACE
TPT\ Q 1
r UJl
DEX
DECREMENT COUNT
A 1 1 A C TV
011 4 6A
FD32
FF
F3A3
A
STX
NTRACE
AND RESTORE
A 1 1 VI "7 TV
01147A
FD 35
27
D8 FD0F
BEQ
CTRL
BRANCH IF ALL TRACES DONE
*
A 1 1 A Q
u 114 y
*
TRACE NOT
DONE - TRACE NEXT INSTRUCTION
A 1 1 C A
01150
*
01151A
FD37
B6
F3A2
A
CONTRC LDAA
TRCINS
GET CURRENT INSTRUCTION
01152A
FD3A
B7
F388
A
STAA
BRINS
SAVE IN CASE IT'S A BRANCH
01153A
FD3D
8D
70 FDAF
BSR
OPCBYT
GO GET # BYTES/TYPE
01154A
FD3F
4D
TSTA
CHECK FOR BRANCH
01155A
FD40
2A
35 FD77
BPL
CKOBRA
CHECK FOR OTHER THAN BRANCH
PAGE 036 TVBUG46 .SA:0 TVBUG 1.2 A VDG MONITOR FOR 6800, 01, 02, 03, 08 SYSTEM
01157
01158
01159
01160
01161
01162A
01163A
01164A
01165A
01166A
01167
011~68
01169
01170
01171A
01172A
01173
01174
01175
01176
01177A
01178A
01179A
01180A
01181A
01182A
01183
01184A
01185
01186A
01187A
01188A
01189A
01190A
01191A
01192
01193
01194
01195A
01196A
01197A
01198A
01199
01200
01201
01202A
01203A
01204A
01205A
01206A
01207A
*
*
*
FD42 32
FD43 34
FD44 8A 10
FD46 06
FD47 7E F388
FD4A 86 02 A
FD4C 20 29 FD77
FD4E FE F3A0 A
FD51 A6 01 A
FD53 08
FD54 08
FD55 2B 12 FD69
FD57 8D 16 FD6F
FD59 FF F3A0 A
RELATIVE BRANCH TYPE INSTRUCTION
DETERMINE WHERE TO PUT SWI
S- HOLDS POINTER TO USER STACK AFTER SWI
PULA GET CONDITION CODE
DES UPDATE STACK PTR AFTER PULL
ORAA #%00010000 MAKE INT'S INHIBITED
TAP RESTORE USER'S C. CODE REG
JMP BRINS GO SEE HOW RELATIVE BRANCH
FARES
*
*
*
*
BRNOGO LDAA
BRA
*
* BRANCH WAS
* JUMPED TO
*
BRGO
BRANCH WAS NOGO - PUT SWI AT NEXT INSTRUCTION
#2 A = # BYTES AFTER CURRENT INSTR
CKOBRA GO PUT SWI APPROPRIATELY
GO, PUT SWI AT ADDRESS BEING
BRGl
BRG2
*
FD5C
FD5E
FD61
FD63
FD65
FD68
FD69
FD6A
FD6B
FD6D
FD6F
FD70
FD72
FD73
FD74
FD76
A6 00
B7 F3A2
86 3F
A7 00
BE F382
3B
A
A
A
A
A
LDX
TRCADR
X : ■ TRACE ADDRESS
LDAA
i,x
GET BRANCH OFFSET
I NX
OFFSET IS RELATIVE TO
INX
INSTR FOLLOWING BRANCH
BMI
BRGO DC
BRANCH IF OFFSET NEGATIVE
BSR
INCX
INCREMENT X BY AMOUNT IN
A REG
STX
TRCADR
SAVE ADDRESS OF NEXT
INSTR TO STOP ON
LDAA
0,X
GET INSTRUCTION TO BE REPLACED
STAA
TRCINS
SAVE
LDAA
#SWI
GET SWI OP CODE
STAA
0,X
REPLACE INSTR WITH SWI
LDS
SP
GET ORIGINAL STACK POINTER
RTI
TRACE ANOTHER INSTR
09
4C
26 FC FD69
20 EA FD59
* X NEEDS TO BE DECREMENTED (OFFSET NEGATIVE)
*
BRGO DC DEX
INCA
BNE BRGO DC
BRA BRG2
*
* SUBROUTINE TO INCREMENT X BY CONTENTS OF A
*
INCX
DECREMENT ADDRESS
INCREMENT COUNTER
IF COUNTER NOT 0, BRANCH
IF DONE, GO RETURN TO USER PROG
4D INCX TSTA
27 04 FD76 BEQ INCXR
08 INXLP INX
4A DECA
26 FC FD72 BNE INXLP
39 INCXR RTS
IS A = 0?
IF SO, INC DONE
ELSE INCREMENT X
DECREMENT COUNT
IF COUNT NOT YET 0, LOOP
RETURN FROM THIS SUBROUTINE
92
PAGE 037 TVBDG46 .SA:0 TVBUG 1.2 A VDG MONITOR FOR 6800,01,02,03,08 SYSTEM
01209
*
01210
* INSTRUCTION TO BE TRACED IS NOT A BRANCH.
01211
*
01212A
FD77
FE
F3A0 A
CKOBRA LDX
TRCADR
X : = TRACE ADDRESS
01213A
FD7A
E6
00
A
LDAB
0,X
#$6E
GET INSTR TO BE TRACED
01214A
FD7C
CI
6E
A
CMPB
IS IT A JUMP, INDEXED?
01215A
FD7E
27
1A
FD9A
• BEQ
JMPIDX
YES, GO SIMULATE JUMP IDXED
01216A
FD80
CI
7E
A
CMPB
#$7E
JUMP, EXTENDED?
01217A
FD82
27
ID
FDAl
BEQ
JMPEXT
01218A
FD84
CI
AD
A
CMPB
#$AD
JSR, INDEXED?
01219A
FD86
27
12
FD9A
BEQ
JMPIDX
(JUMP IDXED IS SAME AS
01220
*
TRANSFER OF CONTROL)
01221A
FD88
CI
BD
A
CMPB
#$BD
JSR, EXTENDED?
01222A
FD8A
27
15
FDAl
BEQ
JMPEXT
01223A
FD8C
CI
3B
A
CMPB
#$3B
RTI?
01224A
FD8E
27
15
FDA5
BEQ
RTISIM
01225A
FD90
CI
39
A
CMPB
#$39
RTS?
01226A
FD92
27
16
FDAA
BEQ
RTS SIM
01227A
FD94
CI
8D
A
CMPB
#$8D
BSR?
01228A
FD96
27
B6
FD4E
BEQ
BRGO
(BRANCH PROCESSING)
01229
*
01230
* NOT A BRANCH, JUMP,
RTI, RTS
01231
* A REGISTER
HOLDS #
BYTES IN INSTRUCTION
01232
*
01233A
FD98
20
BD
FD57
BRA
BRG1
PUT IN NEW SWI AND
01234
*
TRACE NEXT INSTRUCTION
01235
*
01236
* JUMP, JSR
INDEXED SIMULATION
01237
*
01238A
FD9A
A6
01
A
JMPIDX LDAA
i,x
A : = ADDRESS OFFSET
01239A
FD9C
30
TSX
01240A
FD9D
EE
03
A
LDX
3,X
GET TARGET'S X REG
01241A
FD9F
20
B6
FD57
BRA
BRG1
UPDATE X, TRACE NEXT INSTR
01242
*
01243
* JUMP, JSR
EXTENDED
01244
*
01245A
FDA1
EE
01
A
JMPEXT LDX
i,x
GET ADDRESS TO BE JUMPED TO
01246A
FDA 3
20
B4
FD59
BRA
BRG2
GO TRACE NEXT INSTR
01247
*
01248
* RTI ENCOUNTERED
01249
*
01250A
FDA5
30
RTISIM TSX
01251A
FDA6
EE
0C
A
LDX
12, X
GET P-COUNTER FROM STACK
01252A
FDA 8
20
AF
FD59
BRA
BRG2
GO TRACE NEXT INSTR.
01253
*
01254
* RTS ENCOUNTERED
01255
*
01256A
FDAA
30
RTS SIM TSX
01257A
FDAB
EE
07
A
LDX
7,X
GET RETURN P-REG FROM STACK
01258A
FDAD
20
AA
FD59
BRA
BRG2
GO TRACE NEXT INSTR
93
PAGE 038 TVBUG46 .SA:0 TVBUG 1.2 A VDG MONITOR FOR 6800,01,02,03,08 SYSTEM
01260
01261
01262
01263
01264
01265
01266
01267
01268
01269
01270
01271
01272
01273
01274
01275
01276
01277
01278A
01279A
012 80 A
01281A
01282A
01283
012 84 A
01285A
01286
01287A
01288A
01289
01290
01291
01292
01293
01294
01295A
01296A
01297A
01298A
01299A
01300A
01301A
01302
01303A
01304
01305A
FDAF
FDBO
FDB1
FDB2
FDB3
FDB4
FDB7
FDB9
FDBB
*************************
*
* OPBCYT
*
* THIS ROUTINE DETERMINES THE
* IN AN INSTRUCTION
* GIVEN ITS OP CODE.
*
*
*
*
*
*
*
*
************************
*
FDAF A
16
44
44
44
44
CE FDCD A
8D B6 FD6F
A6 00 A
26 OF FDCC
FDBD
FDBF
FDC1
FDC3
FDC5
FDC7
FDC9
FDCB
FDCC
# OF BYTES
INPUT: A HOLDS THE OP CODE
OUTPUT: X HOLDS INDEX OF TABLE ELEMENT
B NOT RESTORED
A HOLDS # BYTES IN INSTRUCTION
EXCEPT FOR BRANCHES IN WHICH CASE A IS NEGATIVE
OPCBYT EQU
TAB
LSRA
LSRA
LSRA
LSRA
*
LDX
BSR
*
LDAA
BNE
*
*
B:= OP CODE
PUT 4 UPPER BITS OF OP CODE INTO
LOWER 4 BITS OF A
#0 PBTTB X= ADDRESS OF TABLE
INCX INC X TO POINT TO ENTRY
0 , X GET TABLE ENTRY
OPBTRT IF NOT 0 THEN NO FURTHER
PROCESSING NEEDED
* IF TOP 4 BITS » 8 OR C, THEN THERE ARE TWO CLASSES
* OF INSTRUCTIONS: 2 BYTE INSTRUCTIONS AND
* CE, 8C AND 8E WHICH ARE 3 BYTE INSTRUCTIONS
86 02 A
CI 8C A
27 08 FDCB
CI CE A
27 04 FDCB
CI 8E A
2 6 01 FDCC
4C
39
OPBT3
*
LDAA
#2
# BYTES IN MOST OF 8# INSTRUCTIOI
CMPB
#$8C
3 BYTE INSTRUCTION?
BEQ
OPBT3
YES, UPDATE A
CMPB
#$CE
3 BYTE INSTR?
BEQ
OPBT3
YES, UPDATE A
CMPB
#$8E
3 BYTE INSTRUCTION?
BNE
OPBTRT
NO, RETURN
INCA
# BYTES IN INSTRUCTION: =3
RTS
RETURN TO CALLER
9^
PAGE 039 TVBUG46 .SA:0 TVBUG 1.2 A VDG MONITOR FOR 6800,01,02,03,08 SYSTEM
01307
*
01308
* OP
CODE TO
NUMBER
OF BYTES CONVERSION TABLE
01309
*
01310
*
1
1 BYTES
TOP
4 BITS OF OPCODE
01311
*
01312
*
01313
FDCD
A
OPBTTB EQO
*
01314A
FDCD
01
A
FCB
1
0
01315A
FDCE
01
A
FCB
1
1
01316A
FDCF
82
A
FCB
2+%10000000
2 ( MINUS =" BRANCHES)
01317A
FDDO
01
A
FCB
1
3
01318A
FDD1
01
A
FCB
1
4
01319A
FDD 2
01
A
FCB
1
5
01320A
FDD 3
02
A
FCB
2
6
01321A
FDD4
03
A
FCB
3
7
01322A
FDD5
00
A
FCB
0
8
# BYTES =2 EXCEPT 8C,8E
01323A
FDD6
02
A
FCB
2
9
01324A
FDD7
02
A
FCB
2
A
01325A
FDD 8
03
A
FCB
3
B
01326A
FDD9
00
A
FCB
0
C
# BYTES =2 EXCEPT CE
01327A
FDDA
02
A
FCB
2
D
01328A
FDDB
02
A
FCB
2
E
01329A
FDDC
03
A
FCB
3
F
95
8- %9
PAGE 040 TVBUG46 .SA:0 TVBUG 1. 2 A VDG MONITOR FOR 6800, 01, 02, 03, 08 SYSTEM
01331
*
01332
* CONSTANT
DATA
01333
01334A
FDDD
56
A
MCL2
FCC
/VDG DEBUG SYSTEM/
01335A
FDED
3B
A
FCC
/; TV-BUG VER 1.2/
01336A
FDFC
0D
A
FCB
$D
01337A
FDFD
4D
A
FCC
/ MOTOROLA- AUSTIN TEX/
01338A
FE10
04
A
FCB
4
01339A
FE11
43
A
MGL3
FCC
/CC B A X P
01340A
FE26
04
A
FCB
4
01341A
FE27
OD
A
MCL4
FCB
$D
01342A
FE28
42
A
FCC
/BEG ADR? /
01343A
FE31
04
A
FCB
4
01344A
FE32
45
A
MCL5
FCC
/END ADR? /
01345A
FE3B
04
A
FCB
4
01346A
FE3C
20
A
NCHG
FCC
/ MEMORY BAD!/
01347A
FE48
04
A
FCB
4
01348A
FE49
OD
A
READY
FCB
$D
01349A
FE4A
54
A
FCC
/TVBUG/
01350A
FE4F
OD
A
FCB
$D,4
01351A
FE51
OD
A
OF SE T
FCB
$D
01352A
FE52
4F
A
FCC
/ OFFSET=/
01353A
FE59
04
A
FCB
4
01354A
FE5A
54
A
BADJP
FCC
/TOO FAR! /
01355A
FE62
04
A
FCB
4
01356A
FE63
OD
A
FILLMS
FCB
$D
01357A
FE64
43
A
FCC
/CHAR?/
01358A
FE69
04
A
FCB
4
01359
*
S/
PAGE 041 TVBUG46 .SA:0 TVBUG 1.2 A VDG MONITOR FOR 6800,01,02,03,08 SYSTEM
01361
01362
01363
01364
01365
01366
01367
01368A
01369A
01370A
01371A
013-72A
01373A
01374A
01375A
01376A
01377A
01378A
01379
01380
01381
01382A
01383A
01384A
01385A
FE6A 37
FE6B FE
FE6E 8D
FE70 36
FE71 86
FE73 C6
FE75 BD
FE78 8B
FE7A BD
FE7D 5A
FE7E 26
CF
04
FF7F
10
FF53
FE80 32
FE81 BD FF7F
FE84 33
FE85 39
**********
* A,B UNCHANGED, X= (NEXTBY)
* SAVE CHARACTER AT LOCATION
* (NEXTBY)
* FLASH THE LOCATION (4 COLORS)
* REPLACE THE CHAR & RETURN
**********
BLINK
F3CC A
16 FE86
A
A
A
A
A
INC1
F5 FE75
PSHB
LDX
BSR
PSHA
LDAA
LDAB
JSR
ADDA
JSR
DECB
BNE
NEXTBY
SYNCLD
#$CF
#4
SAVE
#$10
WAITFS
INC1
BLINK CURSOR
* REPLACE CHARACTER
*
PULA
JSR
PULB
RTS
SAVE
$-4!
PAGE 042 TVBUG46 .SA:0 TVBUG 1.2 A VDG MONITOR FOR 6800,01,02,03,08 SYSTEM
01387 **********
01388 * B,X UNCHANGED
01389 * MASK INTERRUPT BEFORE LOAD
01390 * & UNMASK AFTER
01391 * WAIT FOR LEADING EDGE
01392 * OF HORIZONTAL SYNC THEN
01393 * LOAD A FROM LOCATION 0,X
01394 **********
01395A FE86 OF SYNCLD SEI
01 3 96 A FE87 B6 F406 A SLD1 LDAA PIABD
01397A FE8A 2A FB FE87 BPL SLD1
013 98 A FE8C B6 F406 A SLD2 LDAA PIABD
013 9 9 A FE8F 2B FB FE8C BMI SLD2
01400 *
01401 * NOW CAN LOAD
01402 *
01403A FE91 A6 00 A LDAA 0,X
01404A FE93 0E CLI
01405A FE94 39 RTS
9%
PAGE 043 TVBUG46 .SA:0 TVBUG 1.2 A VDG MONITOR FOR 6800,01,02,03,08 SYSTEM
01407
u x *± u o
01 40 Q
01 41 n
01411
U X 411
01412
01413
01414
01415
w JU1X J
01416
ux txu
01 41 7
Vlll /
01-41 ft
ni A^ q
U JL4X y
0 1 49 1 A
£ £ijj
1 7
D /
TPTPQ a
£ sLy o
JO
UX4ZDA
TP TP O "7
I? c
£ O
tp a ft a tv
F4Uo A
01 494
01 A 9 5A
U14Z DA
TpT?Q A
D O
HI A9 £ A
Oil
FFQ T*
9 A
Z ft
ft o tptptv a
U j £ Hi A O
01 427A
Uliti /A
FFQH
17
d /
01 49ftA
FFQ 1?
r JCi .7 XL
ft6
O 17
F 0 A
JZi U A
Ux ffcZ
tptptv n
£ £xAU
n £
TPTP 7V
£ £ A
01 410A
UIIj UA
£ J&AZ
on
DU
TP TP £ A TV
£ £ Oft A
Ux fftOXA
TP T?7\ C
£ JZiAD
l Q
ni ^7o
01 4112V
FFA £
£ Hi AO
D O
fi1 A 1 A A
TP T7 7\ "7
£ £*A /
Z 4
AO TP TPTS 1
Uo FEB1
01 4mA
UX ft O DA
FFAQ
1 7
d /
01436A
PEA A
86
20 A
01437A
vxt j / rik
FFAP
5F
-JE
01418A
v/x •* J OA
FFAD
DH
DLf
FF64 A
£ £ Oft A
01439A
FEBO
33
01440
01 441 A
FFT* 1
DO
01442A
FE1*2
24
OF FFC2
01 441A
FFR4
O vj
f ipn a
ni aaaa
UX ft ft ft A
£ Xj-D /
Oft
1 TP A
x£ A
01445A
v/x *x *± Jn
FF"RQ
2 7
U / £ XuwZ
01 AAfi A
UX ft ft OA
FFTJT1
£ £iJ3X3
FF
£ Hi
tp inn 7v
£ A
H1 AA7A
Ul^ft /A
Til TPT1 TI*
£ £*£>£*
no
uy
01 44ftA
UX ft ft OA
tp tptj tp
£ £iJD£
FT?
£ £
£ A
01 AAQ
Uxft ft y
ft1 A £ftiv
U14DUA
tpt*v* o
£ £iLZ
DO
01 451 A
\J JLt J X A
FFP1
94
1 n FFHR
X U £ EiLJD
01 4R9A
UX 4 J4n
£ £A*D
DO
TP Opn TV
£ XU A
H1 A £1 TV
TP TP/"* O
r £iCo
Q TV
oA
TP A TV
EU A
01 454A
UX *x Dft A
FFP A
£ JEiV*A
ft1
ox
FF A
£ £ A
01 A 5 5 A
£ £iV^W
97
Z /
ft 7 FFn*%
U / £ XjL/O
ni it;c&
£ HiUiti
TP TP
£ £i
tp inn a
£ JUL- A
01457A
V X t -J 1 A
FFH1
£ CiUx
Oft
u o
01 45ftA
Uxft J OA
FFFl9
FF
£ £
f ir 1 /" 1 a
£ jLL A
Ux4D:J
01460A
FEDS
56
01461A
FED6
24
03 FEDB
01462A
FED8
CE
0000 A
01463A
FEDB
32
01464A
FEDC
33
**********
A,B UNCHANGED
IF HOME KEY CLOSED
THEN ADR OF DISPLAY TO (NEXTBY)
IF UP CLOSED
THEN 2'S COMP OF 32 TO A,B &
CALL UPDOWN
IF DOWN KEY CLOSED
THEN 32 TO A,B & CALL UPDOWN
IF RIGHT KEY CLOSED
THEN INCREMENT (NEXTBY) TO MARGIN
IF LEFT KEY CLOSED
THEN DECREMENT (NEXTBY) TO MARGIN
*
*
*
*
*
*
*
*
*
**********
CURSOR
*CHECK
♦CHECK
CUR1
♦CHECK
CUR2
♦CHECK
CUR 3
♦CHECK
CUR4
CUR5
99
PSHB
PSHA
LDAB
PIABD
UP ARROW
RORB
BCC
CUR1
PSHB
LDAA
#$E0
LDAB
#$FF
JSR
UPDOWN
PULB
DOWN
ARROW
RORB
BCC
CUR2
PSHB
LDAA
#$20
CLRB
JSR
UPDOWN
PULB
LEFT
ARROW
RORB
BCC
CUR 3
LDAA
NEXTBY+1
ANDA
#$1F
BEQ
CUR3
LDX
NEXTBY
DEX
STX
NEXTBY
RIGHT ARROW
RORB
BCC
CUR4
LDAA
NEXTBY+1
ORAA
#$E0
CMPA
#$FF
BEQ
CUR4
LDX
NEXTBY
INX
STX
NEXTBY
HOME
KEY
RORB
BCC
CUR5
LDX
fVDGRAM
PULA
PULB
i
1-4$
-32
+ 32
PAGE 044 TVBUG46 .SA:0 TVBUG 1.2 A VDG MONITOR FOR 6800,01,02,03,08 SYSTEM
01465A FEDD FF F3CC A STX NEXTBY
01466A FEEO 3 9 RTS
/oo
PAGE 045 TVBUG46 .SA:0 TVBUG 1.2 A VDG MONITOR FOR 6800,01,02,03,08 SYSTEM
01468
01469
01470
01471
01472A
01473A
01474A
01475A
01476A
01477
01478
01479A
01480A
01481A
01482A
01483
01484
01485
01486A
01487A
01488
01489A
01490A
01491A
01492A
01493
01494
01495
01496
01497
01498
01499
01500
01501A
01502A
01503A
01504A
01505A
01506A
01507
01508A
FEE1
FEE4
FEE5
FEE7
FEE9
FEEC
FEEF
FEF1
FEF4
FEF6
FEF8
FEFA
FEFD
FEFF
FFOO
* NOW CHECK KEYBOARD
* ON EXIT INPUT CHAR IN A-REG
* X,B UNCHANGED
FF F3CA A INCH1 STX SAVEX
37 PSHB
8D 83 FE6A INCH0 BSR BLINK
8D AC FE95 BSR CURSOR
FE F3CA A LDX SAVEX
FLASH CURSOR
B6 F404 A LDAA PIAAD
2B 10 FF01 BMI NONE
Bl F3D7 A CMPA FLAGK
27 OE FF04 BEQ SAME
LOOK FOR ANY KEY
SAME KEY
FROM LAST TIME?
* CHECK FOR ESCAPE FUNCTION
81 IB A
27 12 FF0C
B7 F3D7 A
8D 10 FF0F
33
39
CMPA
BEQ
STAA
BSR
PULB
RTS
#$1B
CNTLEV
FLAGK
OUTCH1
ECHO CHAR
FF01
FF04
FF05
FF08
FF0A
FFOB
7F F3D7 A
OC
BD F390 A
24 DB FEE 5
33
39
* NO KEY CLOSED NOW GO TO USER ROUTINE
* IF USER HAS KEY DOWN
* RETURN WITH CHAR IN A REG
* WITH CARRY = 1
* ELSE RETURN WITH CARRY =0
*
NONE
SAME
CLR
CLC
JSR
BCC
PULB
RTS
FLAGK
USRINP
INC HO
FF0C 7E FB20 A CNTLEV JMP
CONTRL
1*1
PAGE 046 TVBUG46 .SA:0 TVBUG 1.2 A VDG MONITOR FOR 6800,01,02,03,08 SYSTEM
A 1 C1 A
01510
**********
A 1 C 1 1
01511
* A,B,X UNCHANGED
01512
* IGNORES LF
A 1 C 1 *3
0151 o
* CALLS "RETURN" IF C.R.
A 1 C 1 A
01514
* CALLS "INIT"
1 IF FORM FEED
A1 CI C
01515
* CALLS "SCROLL" IF BOTTOM
01516
* OF DISPLAY RAM IS EXCEEDED
01517
* ELSE STORES
CHAR
A 1 C 1 O
01518
**********
01519A
FF0F
37
OUTCH1 PSHB
01520A
FF10
36
PSHA
01-52 1A
F r 11
FF
F3CA A
STX
SAVEX
A 1 CO*"*
01 522
*
01523
*
A 1 OA
01524
* CHECK IF END OF DISPLAY BUFF IF YES THEN SCROLL
01525
*
01526A
FF14
FE
F3CC A
MA INI LDX
NEXTBY
A 1 C O 1 1\
01527A
FF17
oC
D200 A
CPX
#VDGRAM+512
01528A
FF1A
26
03
FF1F
BNE
MA IN 2
01529A
FF1C
BD
FFC9 A
JSR
SCROLL
A 1 C O A
01530
*
01531
* CHECK FOR C.
,R. IF YES THEN FINISH LINE WITH BLANKS
01532
* TRAP L.F. 'S
01533
*
01534A
FF1F
81
OA
A
MAIN 2 CMPA
#$0A
01535A
FF21
27
25
FF48
BEQ
MAIN 6
A1 COCn
0153 oA
FF23
81
0D
A
CMPA
#$D
01537A
TIT""! *"> C
FF25
26
06
FF2D
BNE
MAIN 3
01538A
FF27
8D
67
FF90
BSR
RETURN
A 1 C *i A n
01539A
FF29
86
OA
A
LDAA
#$0A
01540A
FF2B
20
E7
FF14
BRA
MA INI
01541
*
01542
*
A 1 C A O
* CHECK FOR FORM FEED IF YES CLEAR SCREEN
01544
*
01545A
FF2D
81
0C
A
MAIN 3 CMPA
#$oc
0154 6A
FF2F
26
04
FF35
BNE
MAIN4
01547A
FF31
8D
75
FFA8
BSR
INIT
0154 8A
FF33
20
FF48
BRA
ioz.
PAGE 047 TVBUG46 .SA:0 TVBUG 1.2 A VDG MONITOR FOR 6800,01,02,03,08 SYSTEM
01550
01551
01552
01553
01554A
01555A
01556A
01557A
01558A
01559A
01560A
01-561A
01562
01563
01564
01565
01566A
01567A
01568A
01569A
01570A
01571A
01572
01573
01574
01575
01576A
01577
* CHECK FOR BACKSPACE IF YES MOVE POINTR BACK
* & STORE INVERTED BLANK
*
FF35
FF37
FF39
FF3C
FF3E
FF3F
FF41
FF43
81 08
A MAIN 4 CMPA
26 0C FF45
8C D000 A
27 OA FF48
09
86 60 A
8D 3C FF7F
20 03 FF48
BNE
CPX
BEQ
DEX
LDAA
BSR
BRA
#$08
MAIN 5
#VDGRAM
MA IN 6
#$60
SAVE
MAIN 6
* GET HERE TO SAVE THE BEGGAR.. THEN HOME
*
*
FF45
FF47
FF48
FF4B
FF4E
FF4F
FF45 A MAIN 5 EQU
8D 38 FF7F BSR SAVE
08 INX
FF F3CC A MAIN 6 STX NEXTBY
FE F3CA A f^AlA)7 LDX SAVEX
32 PULA
33 PULB
* NOW GO TO USERS DISPLAY ROUTINE
♦....NOTE USER MUST EXECUTE A RTS
* AS LAST INS
A JMP USROUT
FF50 7E F393
3-4-7
lot
PAGE 048 TVBUG46 .SA:0 TVBDG 1.2 A VDG MONITOR FOR 6800,01,02,03,08 SYSTEM
01579 **********
01580 * A,B,X UNCHANGED
01581 * WAIT FOR LEADING EDGE OF
01582 * FIELD SYNC (VERTICAL SYNC)
01583 * THEN EXIT
01584 **********
01585 FF53 A WAITFS EQU *
01586A FF53 37 PSHB
01587A FF54 F6 F406 A WAIT 2 LDAB PIABD
01588A FF57 58 ASLB
015 89A FF58 58 ASLB
01590A FF59 24 F9 FF54 BCC WAIT 2
01591 * GET NEG EDGE
01592A FF5B F6 F406 A WAITl LDAB PIABD
01593A FF5E 58 ASLB
01594A FF5F 58 ASLB
01595A FF60 25 F9 FF5B BCS WAITl
01596A FF62 33 PULB
01597A FF63 39 RTS
3-^8
lot/
PAGE 049 TVBUG46 .SA:0 TVBUG 1.2 A VDG MONITOR FOR 6800,01,02,03,08 SYSTEM
01599
01600
01601
01602
01603
01604
01605
01606
01607
01608
01609
01-610
01611A
01612A
01613
01614A
01615A
01616
01617A
01618A
01619A
01620A
01621
01622A
01623A
01624
01625A
**********
FF64 BB F3CD
FF67 F9 F3CC
FF6A B7 F3C7
FF6D F7 F3C6
FF70 CI DO A
FF72 2D OA FF7E
FF74 CI D2 A
FF76 2C 06 FF7E
FF78 FE F3C6
FF7B FF F3CC
ALL REGS ZAPPED
ON ENTRY A,B CONTAIN OFFSET
TO BE ADDED TO (NEXTBY)
OFFSET WILL BE ADDED ONLY
IF RESULT LOCATION WILL
BE IN ACTIVE AREA OF
DISPLAY RAM
ON EXIT A,B CONTAIN RESULT
X = (NEXTBY) IF OK TO ADD
X - X(N-l) IF NOT OK TO ADD
NEXTBY+1
NEXTBY
TEMP+1
TEMP
FF7E 39
*
*
*
*
*
*
*
*
*
*
**********
A UPDOWN ADDA
A ADCB
*
A STAA
A STAB
*
A CMPB
BLT
CMPB
BGE
*
A LDX
A STX
*
UD0 RTS
#VDGRAM/256
UD0
#(VDGRAM+512)/2 56
UD0
TEMP
NEXTBY
OK TO ADJUST
/05
PAGE 050 TVBUG46 .SA:0
TVBOG 1.2 A VDG MONITOR FOR 6800,01,02,03,08 SYSTEM
01627 *
01628 *
01629 * SAVE. . .COPIES BYTE
01630 * WAITS FOR HORIZ SYNC THEN STORES IN
01631 * DISPLAY RAM
01632 * NO REG KLOBBERED
01633 * ON ENTRY X REG POINTS TO LOG
01634 * IN DISPLAY MEMORY TO STORE CHAR
01635 * INTERRUPT IS MASKED BEFORE WRITE
01636. * TO VDG MEMORY THEN ON MASKED
01637 * (WE MUST WRITE DURING TV HORIZ RETRACE)
01338 *
01639 *
01640A FF7F 37 SAVE PSHB
01641A FF80 OF SEI
01642 *
01643A FF81 F6 F406 A SAVE0 LDAB PIABD WAIT FOR HS=1
01644A FF84 2A FB FF81 BPL SAVE0
01645 *
0164 6A FF86 F6 F406 A SAVE1 LDAB PIABD NEGATIVE EDGE
0164 7A FF89 2B FB FF86 BMI SAVE1
01648 * -
01649 * NOW CAN SAVE ( SCREEN BLANKED)
01650 *
01651A FF8B A7 00 A STAA 0,X
01652A FF8D 0E CLI
01653A FF8E 33 PULB
01654A FF8F 39 RTS
g- So
/06
PAGE 051 TVBUG46 .SA:0 TVBOG 1.2 A VDG MONITOR FOR 6800,01,02,03,08 SYSTEM
01656
01657
01658
01659
01660
01661
01662
01663
01664
01665
01666A
01667
01668A
01669A
01670A
01671
01672
01673
01674A
01675A
01676A
01677A
01678A
01679A
01680A
01681A
01682
**********
*
*
*
*
*
*
*
*
A,B UNCHANGED
FILLS CURRENT LINE WITH
BLANKS FROM CURRENT
POSITION (NEXTBY) TO
END OF LINE
POINTER (NEXTBY) SET TO
START OF NEXT LINE
ON EXIT X = (NEXTBY)
FF90 FE F3CC
**********
A RETURN LDX
*
FF93 36
FF94 86
FF96 8D
FF98 08
FF99 FF
FF9C B6
FF9F 84
FFA1 26
FFA3 FF
FFA6 32
FFA7 3 9
60 A RET1
E7 FF7F
PSHA
LDAA
BSR
NEXTBY
#$60
SAVE
* CONTINUE TO END OF LINE
*
F3C6 A
F3C7 A
IF A
Fl FF94
F3CC A
INX
STX
LDAA
ANDA
BNE
STX
PULA
RTS
TEMP
TEMP+1
#$1F
RET1
NEXTBY
A57
PAGE 052 TVBUG46 .SA:0 TVBUG 1.2 A VDG MONITOR FOR 6800,01,02,03,08 SYSTEM
01684
01685
01686
01687
01688
01689
01690
01691
01692
01693
01694A
016 95 A
01696A
01697
01698A
016 9 9A
01700A
01701
01702
01703
01704
01705A
0170 6A
01707A
01708
01709A
01 71 OA
01711A
01712A
01713A
01714A
**********
FFA8 7F
FFAB 7F
FFAE 7F
FFB1 36
FFB2 86
FFB4 B7
FFB7 CE
FFBA 86
FFBC FF
FFBF 8D
FFC1 08
FFC2
FFC5
FFC7 32
FFC8 39
04
F407
*
*
*
*
A,B UNCHANGED
PIA (ASCII KEYBOARD & VDG)
IS CLEARED, SET FOR INPUT
& SET FOR DATA REG ACCESS
ENTIRE SCREEN (512 BYTES) +
ADDITIONAL 512 BYTES ARE
FILLED WITH BLANKS
ON EXIT X = (NEXTBY)
F407 A INIT
F406 A
F3D7 A
A
A
**********
CLR PIABC
CLR PIABD
CLR FLAGK
PSHA
LDAA #$4
STAA PIABC
*
*
* NOW BLANK SCREEN
*
POINT AT DATA REG
8C
26
D000 A
60 A
F3CC A
*
BE FF7F INIT1
D400 A
F8 FFBF
LDX #VDGRAM
LDAA #$60
STX NEXTBY
BSR
INX
CPX
BNE
PULA
RTS
SAVE
#VDGRAM+1024
INIT1
PAGE 053 TVBDG46 .SA:0 TVBUG 1.2 A VDG MONITOR FOR 6800,01,02,03,08 SYSTEM
01716
01717
01718
01719
01720
01721
01722
01723
01724
01725A
01726
01727A
01728
01729A
01730A
01731A
01732A
01733
01734A
01735A
01736
01737A
01738A
01739A
01740A
01741A
01742A
01743
01744A
01745A
01746A
01747A
01748A
**********
FFC9 3 6
FFCA CE D00O A
A,B UNCHANGED
MOVES EACH CHAR OP 1 LINE
(32 LOCATIONS)
TOP LINE IS LOST
BOTTOM LINE IS BLANK ON EXIT
(NEXTBY) IS DECREMENTED BY 32
ON EXIT X = (NEXTBY)
*
*
*
*
*
*
*
**********
SCROLL PS HA
FFCD 37
FFCE OF
FFCF F6 F406 A
FFD2 2A FB FFCF
FFD4 F6 F406 A
FFD7 2B FB FFD4
FFD9 A6 20 A
FFDB 8D A2 FF7F
FFDD 08
FFDE 8C D200 A
FFE1 26 EC FFCF
FFE3 CE D1E0 A
FFE6 0E
FFE7 FF F3CC A
FFEA 33
FFEB 32
FFEC 39
LDX
*
PSHB
SEI
SCROL3 LDAB
BPL
*
SCROL4 LDAB
BMI
*
LDAA
BSR
I NX
CPX
BNE
LDX
*
CLI
STX
PULB
PULA
RTS
#VDGRAM
PIABD
SCROL3
PIABD
SCROL4
32, X
SAVE
#VDGRAM+512
SCROL3
#VDGRAM+4 80
NEXTBY
PAGE 054 TVBUG46 .SA:0 TVBUG 1.2 A VDG MONITOR FOR 6800,01, 02,03,08 SYSTEM
01750 *
01751 *
01752A FFED 0D A HE ADM S FCB $D
01753A FFEE 4E A FCC /NAME? /
01754A FFF4 04 A FCB 4
PAGE 055 TVBUG46 .SA:0 TVBUG 1.2 A VDG MONITOR FOR 6800,01,02,03,08 SYSTEM
01756 *
01757 *
01758 * INTERRUPT VECTORS
01759 *
01760A FFF8 ORG BASORG+$7F8
01761A FFF8 F824 A FDB IO
01762A FFFA F82E A FDB SFEI
01763A FFFC F829 A FDB POWDWN
01764A FFFE FAD 7 A FDB START
PAGE 056 TVBUG46 .SA:0 TVBUG 1.2 A VDG MONITOR FOR 6800, 01, 02, 03, 08 SYSTEM
01766
01767
01768
01769
01 77 OA
01771A
01772A
01773
01774
01775
01776
01-777
01778A
01779A
01780A
01781A
01782A
01783A
01784A
01785A
01786
01787
01788
01789
01790 .
01791
01792
01793A
01794A
01795
017 96 A
01797A
01798A
01799
01800
01801
01802
01803
01804
01805
* RAM SCRATCHPAD FOR TVBUG. .+ STACK
*
F000
F000
F36F
F37A
F37C
F37E
F380
F382
F384
F386
F388
F390
F393
F396
F399
F39C
ORG
$F000
A *3 CO
A
RMB
O 1 Q
A A At*
000B
A
STACK
*
RMB
11
0008
A
NBRBPT
+
EQO
8
*THE FOLLOWING
*
1 ARE
0002
A
IOV
RMB
2
0002
A
BEGA
RMB
2
0002
A
ENDA
RMB
2
0002
A
NIO
RMB
2
0002
A
SP
RMB
2
0002
A
SWI1
RMB
2
0002
A
SWI2
RMB
2
0008
A
BRINS
RMB
8
# OF BREAKPOINTS
I/O INTERRUPT POINTER
PRINT/PUNCH START LOC
PRINT PUNCH STOP LOC
NMI INTERRUPT POINTER
USER STACK POINTER
LEVEL 1 SWI VECTOR
LEVEL 2 SWI VECTOR
COND BRANCH STORAGE
*
*
*
*
*
USER I/O VECTORS
INITALIZED TO RTS
USER MUST END HIS ROUTINES
WITH RTS OR ALL IS LOST! I ! I
0003
A
USRINP
RMB
3 USER INPUT ROUTINE
0003
A
USROUT
*
RMB
3 USER OUTPUT ROUTINE
0003
A
USR1
RMB
3
0003
A
USR2
RMB
3
0004
A
USR3
*
RMB
4
* A 16
BYTE
PROM MAY BE PATCHED
* OVER
THE
ABOVE 16 LOCATIONS.
* USER
VECTORS WILL THEN BE
* AVAILABLE
*
AT POWER ON.
F3A0
A
BRANEN
EQU
*
PAGE 057 TVBDG46 .SA:0 TVBUG 1.2 A VDG MONITOR FOR 6800,01,02,03,08 SYSTEM
01807
*
01808
* THE FOLLOWING ARE INITALIZED TO ZERO
01809
it
01810
it
01811A
F3A0
0002
A
TRCADR
RMB
2
TRACE ADDRESS
01812A
F3A2
0001
A
TRCINS
RMB
1
PP CODE REPLACED BY TRACE
01813A
F3A3
0002
A
NT RACE
RMB
2
NO OF INS TO TRACE
01814
*
01815A
F3A5
0010
A
BRKADR
RMB
NBRBPT*2
BREAKPOINT TABLE
01816A
F3B5
0010
A
BRKINS
RMB
NBRBPT*2
OP CODES FOR BREAK
01817
*
UloloA
F 3C5
A A A 1
0001
A
ASAVE
RMB
i
01819A
F3C6
0002
A
TEMP
RMB
2
01820A
F3C8
0002
A
TEMP2
RMB
2
01821A
F3CA
0002
A
SAVEX
RMB
2
01822A
F3CC
0002
A
NEXTBY
RMB
2
01823A
F3CE
0001
A
XHI
RMB
1
01824A
F3CF
0001
A
XLOW
RMB
1
01825A
F3D0
0002
A
SSAVE
RMB
2
01826A
F3D2
0001
A
CHRCNT
RMB
1
01827A
F3D3
0001
A
TERMCH
RMB
1
01828A
F3D4
0001
A
VFLAG
RMB
1
01829A
F3D5
0002
A
OFF ADR
RMB
2
01830A
F3D7
0001
A
FLAGK
RMB
1
01831A
F3D8
0001
A
BRKSIN
RMB
1
1=BREAKS IN USER CODE
01832A
F3D9
0001
A
BRKTRC
RMB
1
l=P-COUNTR IS AT BREAKPOINT
01833
*
& USER WANTS TO CONTINUE
01834
*
ONE TRACE WILL BE DONE
01835
*
& BREAKS
RESTORED
01836
F3DA
A
ENDIN0
EQU
*
01837A
F3DA
0020
A
HEADBF
RMB
32
PAGE 058 TVBDG46 .SA:0 TVBUG 1. 2 A VDG MONITOR FOR 6800, 01, 02, 03, 08 SYSTEM
01839 END
TOTAL ERRORS 00000 — 00000
F409 ACIAD 00079*00508 01044
F408 ACIAS 00078*00079 00464 00505 00670 00989 01040
FA6B ADDOFF 00488 00567*
F872 ADRSTR 00170*00637
F3C5 ASAVE 00830 00836 00859 00878 00901 01818*
F8AB ASCII 00211 00218*
- F936 BAD0 00314*00340
F957 BAD1 00335*00339
F963 BAD 2 00321 00325 00327 00342*
F951 BAD3 00323 00330*
F929 BADDR 00091 00257 00280 00308*00358 00363 00460 00528 00537 00725
FB44 BADDRJ 00725*00737 00750 00758 00784
FE5A BADJP 00624 01354*
F800 BASORG 00084*01760
F37C BEGA 00204 00207 00220 00237 00259 00275 00281 00285 00359 00484 004
00487 00604 00605 01001 01003 01014 01017 01022 01025 01779*
F9D3 BILD 00465*00467 00471 00475 00499
FBC1 BKCON1 00859*00912
FBCE BKCON2 00870*00896 00904 00919 00927 00930 00934
FBD0 BKCON3 00872*00945
FBDF BKDONE 00846 00885*
FBDC BKPOT 00879 00881*
FE6A BLINK 01368*01474
F3A0 BRANEN 00643 01805*
F87D BRG 00175 00177*
FD57 BRG1 01182*01233 01241
FD59 BRG 2 01184*01198 01246 01252 01258
FD4E BRGO 00177 01177*01228
FD69 BRGO DC 01181 01195*01197
F388 BRINS 01152 01166 01785*
F3A5 BRKADR 00832 01815*
FD0C BRKINH 00173 01098 01115*
F3B5 BRKINS 00872 01816*
FBAF BRKLP 00836*00873
F3D8 BRKSIN 00840 00881 01831*
FBA6 BRKSUB 00592 00732 00752 00761 00828*01080 01136
F3D9 BRKTRC 00772 00789 01128 01134 01832*
FD4A BRNOGO 00176 01171*
FB49 BSRBRK 00732*00740 00746
F926 C3 00232 00262 00287 00295*
FA65 C5 00476 00553 00559*00621 00623 00626
FA29 CHANGE 00138 00528*
FA2C CHG0 00529*00550 00556
FA27 CHK1 00519 00521*
FA1A CHKESC 00504 00515*01039
F3D2 CHRCNT 00313 00315 00540 01013 01020 01826*
FD77 CKOBRA 01155 01172 01212*
FC0B CLRBRK 00863 00932*
FF0C CNTLEV 01487 01508*
FBA3 CNTRL2 00733 00802*
FB90 CONT 00130 00789*
FD37 CONTRC 00780 01151*
FB20 CONTRL 00099 00185 00186 00187 00295 00559 00690*00715 00802 01033 011
PAGE 059 TVBUG46 . SA: 0 TVBOG 1.2 A VDG MONITOR FOR 6800,01,02,03,08 SYSTEM
01508
FDOP
CTRL
01117
*01147
FEA6
CUR1
01426
01433*
FEB1
CUR2
01434
01441*
FEC2
COR3
01442
01445
01450*
FEDS
CUR4
01451
01455
01460*
FEDB
COR5
01461
01463*
FE95
CURSOR
01421
*01475
FB47
DELBRK
00132
00731*
F88F
DISPLY
00156
00201*
F37E
END A
00210
00231
00261
01780
*
F3DA
ENDIN0
00651
01836*
FAF3
ESC1
00520
00664*
F900
FAST0
00274
♦00290
F90B
FASTI
00280
*00289
F8FE
FASTLD
00154
00272*
F833
FCTABL
00119
*00707
F872
FCTBEN
00163
*00713
F8E3
FILL
00158
00254*
F8F4
FILL0
00261
*00265
FE63
FILLMS
00255
01356*
F3D7
FLAGK
01481
01489
01501
FBFD
FNDRPL
00860
00925*
F96C
GET ADR
00096
00201
00254
FB40
GOODCH
00709
00718*
FB61
GOTO
00134
00758*
F3DA
HEADBF
00976
00994
01837*
FFED
HEADMS
00974
01752*
FE75
INC1
01374
*01378
FEE5
INCH0
01474
*01504
FEE1
INCH1
00088
00238
00314
FD07
INCNOV
01104
01107*
FD6F
INCX
01182
01202*
01285
FD76
INCXR
01203
01207*
FADD
INILP1
00640
*00644
FAE6
INILP2
00649*00652
FFA8
INIT
00095
00294
00680 i
FFBF
INIT1
01709
*01712
FD72
INXLP
01204*01206
F824
10
00103
*01761
F37A
IOV
00103
01778*
FDA1
JMPEXT
01217
01222
01245*
FD9A
JMPIDX
01215
01219
01238*
FCBA
KC1
01039
*01043
FA0E
KCIN
00466
00480
00483
FCB9
KCOUT
00993
00999
01007 i
F421
KEYAC
00065*00666
F420
KEYAD
00064*00065
00066 i
F423
KEYBC
00067*00667
F422
KEYBD
00066
*
FBE3
LN
00838
00895*
•
F9C0
LOAD
00136
00455*
F9C3
LOADO
00441
00458*
FA04
LOAD1
00492
00494*
FA60
LOAD 19
00495
00545
00557*
FF14
MA INI
01526
*01540
FF1F
MAIN 2
01528
01534*
00261 00286 00365 00602 00603 00972 01000 01002 01C
01696 01830*
00272 00356*00598 00970
00700 00977 01472*
01547 01694*
00485
01030
00067
00490 00504*00507
01038*01059 01066
US
PAGE 060 TVBOG46 .SA:0 TVBOG 1.2 A VDG MONITOR FOR 6800,01, 02, 03,08 SYSTEM
FF2D MA IN 3 01537 01545*
FF35 MAIN 4 01546 01554*
FF45 MAIN 5 01555 01565*
FF48 MAIN 6 01535 01548 01557 01561 01568*
FDDD MCL2 00681 01334*
FE11 MCL3 00799 01339*
FE27 MCL4 00356 01341*
FE32 MCL5 00361 01344*
F8C9 MORE 00234*
FD2B NBKTRC 01130 01143*
0008 NBRBPT 00851 00916 01774*01815 01816
' FE3C NCHG 00557 01346*
F8B5 NEWCHR 00223*00236
F892 NEWLIN 00203*00239
FB73 NEXT 00140 00771*
F3CC NEXTBY 01369 01443 01446 01448 01452 01456 01458 01465 01526 01568 016
01612 01623 01666 01679 01707 01745 01822*
F380 NIO 00108 00684 01781*
FA88 NMI 00586*00683
FBF1 NOBRIN 00841 00911*
FF01 NONE 01480 01501*
F3A3 NTRACE 00774 01144 01146 01813*
FB32 NXTCHR 00708*00714
F3D5 OFF ADR 00461 00573 00574 01829*
FA9D OFFSET 00152 00598*
FE51 OF SET 00458 00599 01351*
FDCB OPBT3 01297 01299 01303*
FDCC OPBTRT 01288 01301 01305*
FDCD OPBTTB 01284 01313*
FDAF OPCBYT 01153 01277*
FC11 OT2HS 00937*00954 00955 00956
FC14 OT4HS 00938*00944 00957 00958 00960
F8E0 OUCH4 00229 00247*
F8DE OUT1S 00242 00243 00244 00245 00246*
F9A7 ODT2H 00420*00429 00430
F9B2 OUT2HS 00094 00212 00430*00534 00937
F8DC OUT2S 00234 00245*
F9B0 OOT4HS 00093 00205 00276 00429*00531 00613 00938
F8D6 ODT5S 00219 00242*
F8C1 OUTASC 00227 00229*
F9B6 ODTCH 00387 00389 00398 00411 00432*00468
FF0F OUTCH1 00089 00247 00432 00560 01490 01519*
FA68 OOTCH5 00560*00589
F8A0 OUTDAT 00210*00214
F982 ODTHL 00374*00421 01047
F986 OUTHR 00384*00424 01050
F8BF ODTPRD 00225 00228*
F9B4 ODTS 00431*00590 00702
F99C PCRLF 00203 00218 00274 00409*00529 00587 00744 00798 00951
FAD 4 PD2 00558 00600 00625 00628*00696
F995 PDATA1 00090 00256 00357 00362 00400*00459 00628 00682 00800 00975
F992 PDATA2 00398*00402
F405 PIAAC 00072*00677
F404 PIAAD 00071*00072 00073 00074 00516 00675 01479
F407 PIABC 00074*00678 01694 01700
F406 PIABD 00073*00674 01396 01398 01423 01587 01592 01643 01646 01695 01'
01734
FCDA PNLDR 00991 01024 01032 01065*01068
3 -CO
PAGE 061 TVBUG46 .SA:0 TVBUG 1.2 A VDG MONITOR FOR 6800,01,02,03,08 SYSTE^
FB52 PNTBRK 00128 00744*00753
F829 POWDWN 00108*01763
FC1E PRINT 00801 00951*01116 01143
FC17 PRNTBK 00866 00943*
FB98 PSTAK1 00144 00593 00798*
FCD3 PUN 00995 01010 01015 01016 01019 01058*
FC45 PUN00 00977*00981
FC35 PUNCH 00142 00970*
FC64 PUND05 00995*00997
FC6E PUND10 01000*01028
FC7E PUND25 01004 01006*
FC95 PUND30 01019*01021
F9E8 RDBLCK 00473 00480*
FE49 READY 00695 01348*
FF94 RET1 01669*01678
FF90 RETURN 01538 01666*
FB4D RSTBRK 00148 00737*
FDA 5 RTISIM 01224 01250*
FDAA RTSSIM 01226 01256*
FF04 SAME 01482 01502*
FF7F SAVE 00097 01374 01383 01560 01566 01640*01670 01709 01738
FF81 SAVEO 01643*01644
FF86 SAVE1 01646*01647
F3CA SAVEX 00538 01472 01476 01521 01569 01821*
FFCF SCROL3 01731*01732 01741
FFD4 SCROL4 01734*01735
FFC9 SCROLL 00092 01529 01725*
FB59 SETBRK 00150 00750*
F82E SFEI 00113*01762
FA50 SKPSTR 00541 00547*
FE87 SLD1 01396*01397
FE8C SLD2 01398*01399
F382 SP 00586 00638 00664 00694 00775 00952 00959 01077 01190 01782*
F3D0 SSAVE 00829 00885 00943 01825*
F36F STACK 00171 00658 01772*
FAD7 START 00636*01764
F9FB STBLCK 00490*00498
003F SWI 00058*00917 01097 01188
F384 SWI1 00113 01783*
FCE2 SWI1S 00172 01076*
FCF1 SWI1S1 01086 01088*
F386 SWI2 01107 01784*
FE86 SYNCLD 00098 01058 01370 01395*
F3C6 TEMP 00609 00610 00611 01614 01615 01622 01675 01676 01819*
F3C8 TEMP2 00308 00309 00336 00337 00342 00569 00571 00572 00575 00576 00!
01820*
F3D3 TERMCH 00316 00547 01827*
FB8C TRACE 00146 00784*
FB76 TRACE2 00772*00785
FB79 TRACE 3 00774*00791
F3A0 TRCADR 00777 01093 01137 01138 01177 01184 01212 01811*
FD12 TRCINH 01094 01125*
F3A2 TRCINS 00779 01125 01151 01187 01812*
FF7E UD0 01618 01620 01625*
FF64 UPDOWN 01430 01438 01611*
F396 USR1 00122 01796*
F399 USR2 00124 01797*
F39C USR3 00126 01798*
in
PAGE 062 TVBOG46 .SA: 0 TVBUG 1.2 A VDG MONITOR FOR 6800 ,01, 02 , 03 , 08 SYSTEt
F390 USRINP 01503 01793*
F393 USROUT 01576 01794*
D000 VDGRAM 00060*01462 01527 01556 01617 01619 01705 01711 01727 01740 M'
F9B9 VERIFY 00160 00439*
F3D4 VFLAG 00440 00456 00491 01828*
FF5B WAIT1 01592*01595
FF54 WAIT 2 01587*01590
FF53 WAITFS 01376 01585*
F3CE XHI 00343 00409 00412 00530 00533 00763 00898 00926 01823*
F3CF XLOW 00258 00282 00542 00765 00929 01824*
F923 ZSCR 00162 00294*
lib P
PAGE. 001 S1S9 .SA:0 TVRTS TVBUG ROUTINES
*'*01 NAM TVRTS
(02 TTL TVBUG ROUTINES
00003 *********************************************************
00004 * THESE ROUTINES ARE POSITION INDEPENDENT AND MAY BE
00005 * LOCATED ANYWHERE IN MEMORY.
00006 * THEY INCLUDE THE FOLLOWING:
00007 * 1. PRINTER DRIVERS - START AT THE BASE ADDRESS
00008 *
00009 * CONNECT AN APPROPRIATE RS-232 OR TTL DRIVER TO THE
00010 * OUTPUT OF THE ACIA (PIN 6), AND ATTACH TO
00011 ' * A PRINTER. NOW TVBUG WILL PRINT A CHARACTER EACH
00012 * TIME A CHARACTER IS DISPLAYED ON THE SCREEN.
00013 * (JUST GREAT FOR WORD PROCESSING!)
00014 *
00015 * 2. S1S9 LOADER/PUNCH - START AT THE BASE
00016 * ADDRESS +2
00017 *
00018 * THIS PROGRAM WILL ALLOW TVBUG TO READ AND WRITE
00019 * PROGRAMS WHICH HAVE BEEN WRITTEN USING THE
00020 * MIKBUG, EXBUG , OR MINIBUG FORMAT. (S1S9)
00021 * THIS INCLUDES SWTPC, AND TSC TAPES.
00022 *
00023
00024
00025
00056
*********************************************************
*********************************************************
00026 * ROM ROUTINES
0W28
00029
00030
00031
00032
00033
00034
00035
000 36
00037
00038
00039
00040
00041
00042
00043
00044
00045
00046
00047
00048
00049
00050
00051
>2
00054
00055 F37E A ENDA EQU $F37E
*********************************************************
F800
A
INCH
EQU
$F800
F803
A
OUTCH
EQU
$F803
F806
A
PDATA1
EQU
$F806
F80F
A
OUT4HS
EQU
$F80F
F812
A
OUT2HS
EQU
$F812
F821
A
CONTRL
EQU
$F821
F929
A
BADDR1
EQU
$F929
F96C
A
GETADR
EQU
$F96C
F99C
A
PCRLF
EQU
$F99C
F9A7
A
OUT2H .
EQU
$F9A7
FA6B
A
ADDOFF
EQU
$FA6B
FE51
A
OFSET
EQU
$FE51
*******************
* RAM
TEMPORARIES
*******************
F300
A
XHI
EQU
$F300
F302
A
MCONT
EQU
$F302
F304
A
TEMP
EQU
$F304
F306
A
BYTECT
EQU
$F306
F308
A
TW .
EQU
$F308
F30A
A
CKSM
EQU
$F30A
F30C
A
FIDH
EQU
$F30C
F3CC
A
NEXTBY
EQU
$F3CC
F3D4
A
VFLAG
EQU
$F3D4
F3D5
A
OFFADR
EQU
$F3D5
F37C
A
BEGA
EQU
$F37C
*********************************************************
00057 * PERIPHERIAL ADDRESSES
00058
*********************************************************
I
15
PAGE 002 S1S9 .SA:0 TVRTS TVBUG ROUTINES
r\ r\ f\ c f\
00059
F408
A
ACIAC
EQU
$F408
00060
F409
A
ACIAD
EQU
$F409
00061
00062
*********************************************
00063
*
00064A
0200
ORG
$0200
00065
*
000 66 A
0200
20
02 0204
BRA
ACIA
00067A
0202
20
4E 0252
BRA
S1S9
00068
*
00069 -
*
A A A "7 A
00070
*
00071
* START OF
ACIA DRIVERS
t\ s\ f\ *"i o
00072
*
r\ r\ r\ ~s
00073
ic
00074
ik
00075A
0204
86
03
A
ACIA
LDAA
#$03
00076A
0206
B7
F408
A
STAA
ACIAC
MASTER RESET
00077A
0209
86
51
A
LDAA
#$51
00078A
020B
B7
F408
A
STAA
ACIAC
8 BIT,NP,2STOPS,DIV16
00079A
020E
86
7E
A
LDAA
#$7E
00080A
0210
B7
F393
A
STAA
$F393
Art A A "| •«
00081A
0213
8D
05 021A
BSR
SWAP
000 8 2 A
0215
7E
F821
A
JMP
CONTRL
NOW BACK 1 N PRINT ALL
00083A
0218
20
15 022F
START
BRA
SWICH
00084A
021A
30
SWAP
TSX
00085A
021B
A6
00
A
LDAA
0 , X
00086A
021D
B7
F300
A
STAA
$F300
00087A
0220
A6
01
A
LDAA
1,X
00088A
0222
B7
F301
A
STAA
$F301
00089A
0225
FE
F300
A
LDX
$F300
00090A
0228
08
INX
00091A
0229
08
INX
00092A
022A
08
INX
00093A
022B
FF
F394
A
STX
$F394
00094A
022E
39
RTS
■
00095A
022F
36
SWICH
PSHA
SAVE A
00096A
0230
8D
13 0245
BSR
TEST
GO PRINT CHAR IN A
00097A
0232
81
0D
A
CMPA
#$0D
CARRIAGE RETURN?
00098 A
0 234
26
0D 0243
BNE
END
NO! GO GET NEXT CHAR
00099A
0236
86
OA
A
LDAA
#$0A
YES, ADD LF + 4 NULLS
00100A
0238
8D
0B 0245
BSR
TEST
PRINT LF
00101A
023 A
4F
CLRA
NULL
00102A
023B
8D
08 0245
BSR
TEST
1 NULL
A A 1 A "3 7V
0 0 10 3 A
0 23D
oD
06 0245
BSR
TEST
2 NULLS
00104 A
023F
8D
04 0245
BSR
TEST
3 NULLS
00105A
0241
8D
02 0245
BSR
TEST
4 NULLS
00106A
0243
32
END.
PULA
00107A
0244
23
RTS
00108A
0245
37
TEST
PSHB
SAVE B
00109A
0246
F6
F408
A
11
LDAB
ACIAC
CHECK ACIA
00110A
0249
57
ASRB
00111A
024A
57
ASRB
READY?
00112A
024B
24
F9 0246
BCC
11
NO
00113A
024D
B7
F409
A
STAA
ACIAD
OUTPUT THE CHARACTER
00114A
0250
33
PULB
00115A
0251
39
RTS
PAGE 003 S1S9 .SA:0 TVRTS TVBUG ROUTINES
00119
00120
00121
00122A
00123A
00124A
A
A
A-
A
A
A
A
A
A
A
A
A
A
A
A
A
A
A
e a
A
A
A
A
A
A
A
A
A
A
A
00125A
00126A
00127A
00128A
00129A
00130A
00131A
00132^
00133A
00134A
00135A
00136A
0JA37A
(fj38A
0013 9 A
00140
00141A
00142
00143
*
*
*
*
*
0252
0254
0256
0257
0258
0259
025A
025B
025C
025D
025E
025F
0260
0261
0262
0263
0264
0265
0266
0267
0268
0269
026A
026B
026C
026D
026E
026F
0270
0271
0272
0273
0274
0275
0276
0277
0279
027C
027E
0280
0282
0284
0286
0288
028A
028C
028E
0290
0292
8D
20
8D
BD
81
26
20
81
26
20
8-1
26
20
81
26
7E
0295 20
77
21
50
55
4E
43
48
20
28
50
29
2C
20
4C
4F
41
44
20
28
4C
29
2C
20
56
45
52
49
46
59
20
28
56
29
3F
04
1C
F800
50
02
15
4C
02
54
56
02
50
IB
CO
02CB
0277
A
F821 A
S1S9
A
A
A
A
A
A
A
A
A
A
A
A
A
A
A
A
A
A
A
A
A
A
A
A
A
A
A
A
A
A
A
A
0295
A
A
0282
0297
A
0288
02DC
A
028E
02DE
A
0252
SI - S9 LOADER FUNCTION
BSR SUB1 USE BSR TO TELL X WHERE TO PRINT
BRA SWICH1
FCC /PUNCH (P), LOAD (L), VERIFY (V)?/
SWICH1
KC1
KC2-
KC3
FCB
$04
BSR
P DATA 3
JSR
INCH
CMPA
#*P
BNE
KC1
BRA
S1S9P
CMPA
#'L
BNE
KC2
BRA
S1S9L2
CMPA
#'V
BNE
KC3
BRA
S1S9V2
CMPA
#$1B
BNE
S1S9
JMP
CONTRL
BRA
PDATA4
IZt
C- - 3
TVRTS TVBUG ROUTINES
00144
*
00145
* SI - S9
PUNCH ROUTINE
00146A
0297
BD
F96C
A
S1S9P
JSR
GETADR
GO GET ADDRESSES
00147A
029 A
FE
F37E
A
LDX
EN DA
00148A
029D
09
DEX
00149A
029E
FF
F37E
A
STX
ENDA
CORRECTS FOR TVBUG
00150A
02A1
8D
3F 02E2
BSR
CLEAR1
CLEAR SCREEN
001 5 1A
02A3
8D
3F 02E4
BSR
ACPI
INITIALIZE ACIA FOR PNCH
00152A
02A5
86
12
A
LDAA
#$12
TURN TTY PUNCH ON '
00153A
02A7
8D
3D 02E6
BSR
DUMPO
OUTPUT CHAR
00154 "
*
00155
* PUNCH LEADER - 25
NULLS
00156
*
0015 7 A
02A9
C6
25
A
LDAB
#$25
B=# NULLS TO PUNCH
00158A
02AB
4F
PNULL
CLRA
A=0 (NULL CHAR)
00 15 9 A
02AC
8D
38 02E6
BSR
DUMPO
00160A
02AE
5A
DECB
00161A
02AF
26
FA 02AB
BNE
PNULL
00162A
02B1
FE
F37C
A
LDX
BEGA
00163A
02B4
FF
F308
A
STX
TW
00164A
02B7
B6
F37F
A
PUN11
LDAA
ENDA+1
00165A
02BA
BO
F309
A
SUBA
TW+1
00166A
02BD
F6
F37E
A
LDAB
ENDA
00167A
02C0
F2
F308
A
SBCB
TW
00168A
02C3
26
23 02E8
BNE
PUN 2 2
00169A
02C5
81
10
A
CMPA
#16
00170A
02C7
25
21 02EA
BCS
PUN 2 3
00171A
02C9
20
ID 02E8
BRA
PUN22
GO AROUND THE NEXT STUFF
00172
*
00173
* SOME MORE POSITION INDEPENDENCE STUFF
00174
*
00175A
02CB
30
SUB1
TSX
PUT STACK POINTER INTO X-P:
00176A
02CC
A6
00
A
LDAA
0,X
PUT FIRST BYTE OF LAST BSR
00177A
02CE
B7
F300
A
STAA
$F300
INTO TEMPI
00178A
02D1
A6
01
A
LDAA
i,x
PUT SECOND BYTE IN
00179A
02D3
B7
F301
A
STAA
$F301 -
INTO TEMP 2
00180A
02D6
FE
F300
A
LDX
$F300
NOW GET STRING POINTER
00181A
02D9
08
I NX
CORRECT FOR BRA XXX
00182A
0 2DA
08
I NX
HERE TOO!
00183A
02DB
39
RTS
GO BACK WHERE YA CAME FROM
00184
*
00185A
02DC
20
61 033F
S1S9L2
BRA
S1S9L1
00186A
02DE
20
61 0341
S1S9V2
BRA
S1S9V1
00187A
02E0
20
69 034B
P DATA 4
BRA
PDATA2
HELPSIES!
00188A
02E2
20
6D 0351
CLEAR1
BRA
CLEAR
00189A
02E4
20
57 033D
ACPI
BRA
ACPIN
00190A
02E6
20
5B 0343
DUMPO
BRA
DUMP1
00191
*
00192A
02E8
8-6
OF
A
PUN-22
LDAA
#15
00193A
02EA
8B
04
A
PUN 2 3
ADDA
#4
00194A
02EC
B7
F302
A
STAA
MCONT
FRAME COUNT THIS RECORD
00195A
02EF
80
03
A
SUBA
#3
00196A
02F1
B7
F304
A
STAA
TEMP
BYTE COUNT THIS RECORD
00197
* PUNCH C/R,
L/F, NULL, S, 1.
00198A
02F4
86
42
A
LDAA
#'B
PRINT 'B' FOR EACH RECORD
00199A
02F6
BD
F803
A
JSR
OUTCH
00200A
02F9
8D
DO 02CB
BSR
SUB1
00201A
02FB
20
09 0306
BRA
SWICH2
PAGE 005 S1S9 .SA:0 TVRTS TVBUG ROUTINES
202A
02FD
OD A
FCB
$D,$A.O
•0.0.0.'S.'1.4 PUNCH FORMAT
A
02FE
OA A
A
02FF
00 A
A
0300
00 A
A
0301
00 A
A
0302
00 A
A
0303
53 A
A
0304
31 A
A
0305
04 A
00203A
0306
8D
3D 0345
SWICH2 BSR
PUNCHE
(LIKE P DATA , ONLY TO ACIA)
00204A
0308
5F
CLRB
CLEAR CHECKSUM
00205
* PUNCH FRAME COUNT
00206A
0309
CE
F302 A
LDX
#MCONT
00207A
030C
8D
39 0347
BSR
PUNT2
PUNCH 2 HEX CHARACTERS
00208
* PUNCH ADDRESS
00209A
030E
CE
F308 A
LDX
#TW
00210A
0311
8D
34 0347
BSR
PUNT2
00211A
0313
8D
32 0347
BSR
PUNT2
00212
* PUNCH DATA
00213A
0315
FE
F308 A
LDX
TW
00214A
0318
8D
2D 0347
PUN32 BSR
PUNT2
PUNCH ONE BYTE (2 FRAMES)
00215A
031A
7A
F304 A
DEC
TEMP
00216A
031D
26
F9 0318
BNE
PUN32
00217A
031F
FF
F308 A
STX
TW
00218A
0322
53
COMB
Qft219A
0323
37
PSHB
1 12 OA
0324
30
TSX
0tf22lA
0325
8D
20 0347
BSR
PUNT2
PUNCH CHECKSUM
00222A
0327
33
PULB
RESTORE STACK
00223A
0328
FE
F308 A
LDX
TW
00224A
032B
09
DEX
00225A
032C
BC
F37E A
CPX
ENDA
00226A
032F
26
86 02B7
BNE
PUN11
00227A
0331
8D
98 02CB
BSR
SUB1
00228A
0333
20
03 0338
BRA
SWICH3
00229A
0335
53 A
FCC
/S9/ '
A
0336
39 A
00230A
0337
04 A
FCB
$04
00231A
0338
8D
58 0392
SWICH3 BSR
PUNCHP
OUTPUT EOF
00232A
033A
7E
F821 A
JMP
CONTRL
GO TO CONTROL
00233
*
00234A
033D
20
IF 035E
ACPIN BRA
ACPI NT
00235A
033F
20
6B 03AC
S1S9L1 BRA
S1S9L
00236A
0341
20
5F 03A2
S1S9V1 BRA
S1S9V
00 23 7 A
0343
20
3D 0382
DUMP1 BRA
DUMP
THESE HELP MAKE IT POS . INDEP
00238A
0345
20
4B 0392
PUNCHE BRA
PUNCHP
00239
*
00240
* -PUNCH 2 HEX CHARACTERS, UPDATE CHECKSUM
00241A
0347
E"B
00 A
PUNT 2 ADDB
o,x
UPDATE CHECKSUM
00242A
0349
20
4E 0399
BRA
OUT2H1
OUTPUT TWO HEX CHAR & RTS
00243
*
g"f,44A
034B
BD
F99C A
P DATA 2 JSR
PCRLF
CW45A
034E
7E
F806 A
PDAT1P JMP
PDATA1
00246
*
00247
* CLEAR SCREEN ROUTINE = ACCA UNCHANGED.
00248
*
00249A
0351
36
CLEAR PSHA
00250A
0352
86
OC A
LDAA
#$oc
(FF)
TVRTS TVBUG ROUTINES
00251A
0354
BD
F803
A
JSR
OUTCH
00252A
0357
86
DO
A
LDAA
#$D0
00253A
0359
B7
F3CC
A
STAA
NEXTBY
00254A
035C
32
PULA
00255A
035D
39
RTS
00256
*
00257
* ACIA INITIALIZE (PUNCH)
00258
*
00259A
035E
86
03
A
ACPINT
LDAA
#3
MASTER RESET
00260A
0360
B7
F408
A
STAA
ACIAC
00261A-
0363
86
51
A
LDAA
#$51
8 BITS, NP, 2 STOPS,/16
00262A
0365
B7
F408
A
STAA
ACIAC
00263A
0368
39
RTS
00264
*
00265
* ACIA INITIALIZE 1
[LOAD & VERIFY)
00266
*
00267A
0369
86
03
A
ACLINT
LDAA
#3
00268A
036B
B7
F408
A
STAA
ACIAC
00269A
036E
86
10
A
LDAA
#$10
DIVIDE BY 1
00270A
0370
B7
F408
A
STAA
ACIAC
00271A
0373
39
RTS
00272
*
00273
*
00 27 4 A
0374
44
OUTHL
LSRA
OUT HEX LEFT BCD DIGIT
00275A
0375
44
LSRA
00276A
0376
44
LSRA
00277A
0377
44
LSRA
00278A
0378
84
OF
A
OUTHR
AN DA
#$F
OUTPUT HEX RIGHT BCD DIGIT
00279A
037A
8B
30
A
ADDA
#$30
00280A
037C
81
39
A
CMPA
#$39
00281A
037E
23
02 0382
BLS
DUMP
00282A
0380
8B
07
A
ADDA
#$7
00283A
0382
37
DUMP
PSHB
00284A
0383
F6
F408
A
OUTC1
LDAB
ACIAC
00285A
0386
57
ASRB
00286A
0387
57
ASRB
00287A
0388
24
F9 0383
BCC
OUTC1
XMIT NOT READY
00288A
038A
B7
F409
A
STAA
ACIAD
00289A
038D
33
PULB
00290A
038E
39
RTS
00291
*
00292
*
00293A
038F
8D
Fl 0382
PNCHP2
BSR
DUMP
00294A
0391
08
I NX
00 29 5 A
0392
A6
00
A
PUNCHP
LDAA
o,x
00296A
0394
81
04
A
CMPA
#4
00297A
0396
26
F7 038F
BNE
PNCHP2
00298A
0398
39
RTS
STOP ON EOT
00299
*
00300
*
00301A
0399
A6
00
A
OUT2H1
LDAA
o,x
OUTPUT 2 HEX CHARACTERS
00302A
039B
8D
D7 0374
OUT2HA
BSR
OUTHL
OUT LEFT HEX CHAR
00303A
039D
A6
00
A
LDAA
0,X
PICK UP BYTE AGAIN
00304A
039F
08
INX
00305A
03A0
20
D6 0378
BRA
OUTHR
OUTPUT RIGHT HEX CHARACTER
00306
*
00307
*
00308
*
SI - S9
VERIFY
SETS VERIFY FLAG
17. d
PAGE 007 S1S9
.SA:0 TVRTS TVBUG ROUTINES
109
,10
0TT311
00312A
00313A
00314A
00315
00316A
00317
00318
00319A-
003 20A
00321A
00322A
00323A
00324A
00325A
00326A
00327A
00328A
00.329
00330A
00331A
00332A
00333A
00334A
0#S,35A
0^>36A
00337A
00338A
00339A
00340A
00341A
00342A
00343
00344
00345
00346A
00347A
00348
00349
00350
00351A
00352A
00353A
00354A
00355A
00356A
00357A
00358A
00359A
0J*£0A
0%Ji51
00362
00363
00364
00365A
00366A
*
*
THEN GOES TO LOAD
fl "3 A 9
O D
fl 1 A
C 1 CQU
T r\ A A
# 1
f 1
fl
JD /
F? T)A A
Qrp a A
V r LiAvj
03A7
20
flfi fl^AF
*
DD A
t n a nfl
0 3A9
7E
F8 21 A
,TMP
03 AC
7F
F3D4 A
*
S1S9L
CLR
VFLAG
03AF
CE
FE51 A
LOADO
LDX
#0FSET
PRINT OFFSET QUESTIONS
fl "3R9
fin
Q7 fl
y l U J4D
DCD
pn ATA 9
fl
on
JDU
FQ 9Q A
r y z ^7 a
J OK
X = An I = TEMPz
fl
U JO /
p n
o u
op n ^ i
y O UjjI
fi *3 DQ
u JBy
r r
r JD5 A
STX
OF FADR
o D
AU U3SE
O O T»
BSR
ACPINT
PUNCH RDR ON
A OOP
o D
11 A
11 A
LDAA
#511
(DC1)
noon
oD
r* n n o o o
LU Uioz
BSR
DUMP
U
oD
AC n O £ Q
AD U3o9
*
T> O T~i
BSR
TV T T" XT m
ACLINT
INIT FOR INPUT
oD
DD U41B
LOADi
BSR
LOADE
fl
Q 1
O X
J j t\
fl *3Pfi
96
FA fl^PA
RMF
DIM Ci
t o a
1 cm fUAD MAfP Q
JLOl LttHK INUl O
03CA
BD
F803 A
JSR
OUTCH
PRINT EACH S
03CD
8D
7B 044A
BSR
LOAD
READ CHAR
03CF
81
39 A
CMPA
#'9
03D1
27
D6 03A9
BEQ
RESRT1
ft 1
1 A
CMPA
#'1
U JUJ
4. o
BNE
L0AD3
03D7
7F
F30A A
CLR
CKSM
ZERO CHECKSUM
03DA
8D
2D 0409
BSR
BYTE5
READ BYTE
03DC
80
02 A
SUBA
#2
03DE
B7
F306 A
STAA
BYTECT
* BUILD ADDRESS
*
03E1
8D
18 03FB
BSR
BADDR2
03E3
BD
FA6B A
JSR
ADDOFF
ADDS OFFSET TO X
★
★
STORE AND CHECK DATA
03E6
8D
21
0409
L0AD11
BSR
BYTE5
03E8
7A
F306 A
DEC
BYTECT
03EB
27
47
0434
BEQ
L0AD15
ZERO BYTE COUNT
03ED
7D
F3D4 A
TST
VFLAG
03F0
26
02
03F4
BNE
VERFON
03F2
A7
00
A
STAA
0,X
STORE DATA
03F4
Al
00
A
VERFON
CMPA
o,x
CHECK DATA ENTRY
03F6
26
41
0439
BNE
L0AD19
DATA NOT STORED
03F8
08
I NX
03F9
20
EB
03E6
*
BRA
L0AD11
* NEW
*
BADDR2
03FB
8D
OC
0409
*
BADDR2
BSR
BYTE5
03FD
B7
F300 A
STAA
XHI
IZS
C- 7
PAGE 008 S1S9 .SA:0
TVRTS TVBUG ROUTINES
Q0367A
0400
8D
07 0409
BSR
BYTE5
00368A
0402
B7
F301
A
STAA
XHI+1
00369A
0405
FE
F300
A
LDX
XHI
00370A
0408
39
RTS
00371
*
00372
*
00373
* INPUT BYTE
FROM AC I A
00374
*
00375
*
00376A
0409
8D
12 041D
BYTE 5
BSR
INHEX3
GET HEX CHAR
00377A-
040B
48
ASLA
00378A
040C
48
ASLA
00379A
040D
48
ASLA
00380A
040E
48
ASLA
00381A
040F
16
TAB
00382A
0410
8D
OB 041D
BSR
INHEX3
00383A
0412
IB
ABA
00384A
0413
16
TAB
00385A
0414
FB
F30A
A
ADDB
CKSM
00386A
0417
F7
F30A
A
STAB
CKSM
00387A
041A
39
RTS
00388
*
00389A
041B
20
2D 044 A
LOADE
BRA
LOAD
00390
*
00391
*
00392A
041D
8D
2B 044A
INHEX3
BSR
LOAD
00393A
041F
20
00 0421
BRA
HEX I D
CHECK + RTS
00394
*
00395
* INHEX SUBROUTINE
00396
*
00397A
0421
80
30
A
HEX I D
SUBA
#$30
00398A
0423
2B
47 046C
BMI
CI
NOT HEX
00399A
0425
81
09
A
CMPA
#$09
00400A
0427
2F
OA 0433
BLE
IN1HG
00401A
0429
81
11
A
CMPA
#$11
00402A
042B
2B
3F 046C
BMI
CI
NOT HEX
00403A
042D
81
16
A
CMPA
#$16
00404A
042F
2E
3B 046C
BGT
CI
NOT HEX
00405A
0431
80
07
A
SUBA
#7
00406A
0433
39
IN1HG
RTS
00407
*
00408
* DOES CHECKDUM CHECK?
00409
*
00410A
0434
7C
F30A
A
LOAD15
INC
CKSM
00411A
0437
27
8B 0 3C4
BEQ
LOAD3
00412A
0439
FF
F30C
A
LOAD19
STX
FIDH
00413A
043C
86
20
A
LDAA
#$20
00414A
043E
BD
F803
A
JSR
OUTCH
00415A
0441
CE
F30C
A
LDX
#FIDH
00416A
0444
BD
F80F
A
JSR
OUT4HS
00417A
0447
7E
F821
A
JMP
CONTRL
00418
*
00419A
044A
B6
F408
A
LOAD
LDAA
ACIAC
00420A
044D
47
ASRA
00421A
044E
24
FA 044A
BCC
LOAD
RX NOT READY
00422A
0450
B6
F409
A
LDAA
ACIAD
INPUT CHAR
00423A
0453
84
7F
A
AN DA
#$7F
RESET PARITY
00424A
0455
81
7F
A
CMPA
#$7F
c -1
PAGE 009 S1S9 .SA:0
TVRTS TVBUG ROUTINES
f25A 0457
_.26A 0459
00427
00428
00429
00430
00431
00432
00433
00434A 045A
00435A- 045C
00436A 045D
00437A 045E
00438A 045F
00439A 0460
00440A 0461
00441A 0463
00442A 0464
00443A 0465
00444A 0468
00445A 046B
00446
00447A 046C
00448
00449A 046F
00450A 0472
0V*52
TOTAL ERRORS
27 Fl 044A
39
BEQ
RTS
LOAD
RUBOUT - DEL
*
*
*
*
*
*
PRINT LINE WITH A PRECEEDING CR/LF
X POINTS TO STRING. STRING MUST
TERMINATE WITH A $04 CHARACTER.
INPUT BYTE (TWO FRAMES FROM KEYBOARD)
8D 13 046F BYTE
48
48
48
48
16
8D 0C 046F
IB
16
FB F30A A
F7 F30A A
39
7E F821 A
BD F800 A
20 AD 0421
CI
*
BSR
ASLA
ASLA
ASLA
ASLA
TAB
BSR
ABA
TAB
ADDB
STAB
RTS
JMP
INHEX JSR
BRA
*
END
INHEX
INHEX
CKSM
CKSM
CONTRL
INCH
HEXID
GET HEX CHARACTER
CHECK + RTS
00000--00000
0204
ACIA
00066
00075*
F408
ACIAC
00059
*00076
00078
00109
F409
ACIAD
00060
*00113
00288
00422
0369
ACLINT
00267
*00328
02E4
ACPI
00151
00189*
033D
ACPIN
00189
00234*
035E
ACPINT
00234
00259*
00325
FA6B
ADDOFF
00039
*00347
F929
BADDR1
00035
*00322
03FB
BADDR2
00346
00365*
F37C
BEGA
00054
*00162
045A
BYTE
00434
*
0409
BYTE5
00340
00351
00365
00367
F306
BYTECT
00047
*00342
00352
046C
CI
00398
00402
00404
00447
F30A
CKSM
00049
*00339-.
00385
00386
0351
CLEAR*
00188
00249*00323
02E2
CLEAR1
00150
00188*
F821
CONTRL
00034
*00082
00139
00232
<0382
DUMP
00237
00281
00283*
00293
^343
DUMP1
00190
00237*
02E6
DUMPO
00153
00159
00190*
0243
END
00098
00106*
F37E
ENDA
00055
*00147
00149
00164
F30C
FIDH
00050
*00412
00415
F96C
GETADR
00036
*00146
00109 00260 00262 00268 00270 00284 00419
Z7
PAGE 010 S1S9 .SA:0 TVRTS TVBUG ROUTINES
0421 HEXID
0246 II
0433 IN1HG
F800 INCH
046F INHEX
041D INHEX3
0282 KC1
0288 KC2
028E KC3
044A LOAD
03A-F LOAD0
03E6 LOAD11
0434 LOAD15
0439 LOAD19
03C4 LOAD3
04 IB LOADE
F302 MCONT
F3CC NEXTBY
F3D5 OFFADR
FE51 OFSET
F9A7 OUT2H
0399 OUT2H1
039B OUT 2 HA
F812 OUT2HS
F80F OUT4HS
0383 OUTC1
F803 OUTCH
0374 OUTHL
0378 OUTHR
F99C PCRLF
034E PDAT1P
F806 PDATAl
034B PDATA2
0295 P DATA 3
02E0 PDATA4
038F PNCHP2
02AB PNULL
02B7 PUN11
02E8 PUN22
02EA PUN23
0318 PUN32
0345 PUNCHE
0392 PUNCHP
0347 PUNT2
03A9 RESRT1
0252 S1S9
03AC S1S9L
033F S1S9L1
02DC S1S9I/2
0297 S1S9P
03A2 S1S9V
0341 S1S9V1
02DE S1S9V2
0218 START
02CB SUB1
021 A SWAP
022F SWICH
0277 SWICH1
00393
00109*
00400
00029*
00434
00376
00129
00132
00135
00334
00314
00351*
00353
00358
00330*
00330
00045*
00051*
00053*
00040*
00038*
00242
00302*
00033*
00032*
00284*
00030*
00274*
00278*
00037*
00245*
00031*
00187
00126
00141
00293*
00158*
00164*
00168
00170
00214*
00203
00231
00207
00316*
00067
00235
00185
00133
00130
00236
00186
00136
00083*
00122
00081
00083
00123
00397*00450
00112
00406*
00127 00449
00440 00449*
00382 00392*
00131*
00134*
00137*
00389 00392 00419*00421 00425
00320*
00360
00410*
00412*
00332 00338 00411
00389*
00194 00206
00253
00324
00320
00301*
00416
00287
00199 00251 00333 00414 *
00302
00305
00244
00245
00244*00321
00141*
00187*
00297
00161
00226
00171 00192*
00193*
00216
00238*
00238 00295*
00210 00211 00214 00221 00241*
00336
00122*00138
00319*
00235*
00185*
00146*
00312*
00236*
00186*
00175*00200 00227
00084*
00095*
00126*
I o
PAGE Oil S1S9 .SA:0 TVRTS TVBUG ROUTINES
r\ ^ r\ f
0306
SWICH2
00201 00203*
0338
SWICH3
00228 00231*
F304
TEMP
00046*00196 00215
0245
TEST
00096 00100 00102
00103
00104
00105
00108*
F308
TW
00048*00163 00165
00167
00209
00213
00217 00223
03F4
VERFON
00355 00357*
F3D4
VFLAG
00052*00313 00319
00354
F300
XHI
00044*00366 00368
00369
)29
0200
20
02
20
4E
86
03
B7
F4
08
86
51
B7
F4
08
86
7E
. N. .7 . . ,Q7 . . . .
0210
B7
F3
93
8D
05
7E
F8
21
20
15
30
A6
00
B7
F3
00
7......! • 0 & • 7 • •
0220
A6
01
B7
F3
01
FE
F3
00
08
08
08
FF
F3
94
39
36
0230
8D
13
81
0D
26
0D
86
OA
8D
0B
4F
8D
08
8D
06
8D
0240
04
8D
02
32
39
37
F6
F4
08
57
57
24
F9
B7
F4
09
. . .297. . ,WW$.7. .
0250
33
39
8D
77
20
21
50
55
4E
43
48
20
28
50
29
2C
39.. 1 PUNCH (P),
0260
20
4C
4F
41
44
20
28
4C
29
2C
20
56
45
52
49
46
LOAD (L) , VERIF
0270
59
20
28
56
29
3F
04
8D
1C
BD
F8
00
81
50
26
02
0280
20
15
81
4C
26
02
20
54
81
56
26
02
20
50
81
IB
..L&. T.V&. P..
0290
26
CO
7E
F8
21
20
49
BD
F9
6C
FE
F3
7E
09
FF
F3
02A0
7E
8D
3F
8D
3F
86
12
8D
3D
C6
25
4F
8D
38
5A
26
02B0
FA
FE
F3
7C
FF
F3
08
B6
F3
7F
B0
F3
09
F6
F3
7E
02C0
F2
F3
08
26
23
81
10
25
21
20
ID
30
A6.
00
B7
F3
...&#..%! .0&.7.
U2DU
A A
UU
Ao
A 1
B7
F3
A T
FE
F3
A A
UU
A O
08
A O
O A
39
O A
20
61
20
61
c "7 Q
02E0
20
69
20
6D
20
57
20
5B
86
OF
8B
04
B7
F3
02
80
• • W [••••7«e«
02FO
03
B7
F3
04
86
42
BD
F8
03
8D
DO
20
09
0D
OA
00
• 7 • • • B""" • • • I? ••••
0300
00
00
00
53
31
04
8D
3D
5F
CE
F3
02
8D
39
CE
F3
. . .SI. .= N. . . 9N .
0310
08
8D
34
8D
32
FE
F3
08
8D
2D
7A
F3
04
26
F9
FF
. .4.2 . .&. .
0320
F3
08
53
37
30
8D
20
33
FE
F3
08
09
BC
F3
7E
26
• . S 7 0 « 3*»*«^*«&
0330
86
8D
98
20
03
53
39
04
8D
58
7E
F8
21
20
IF
20
0340
6B
20
5F
20
3D
20
4B
EB
00
20
4E
BD
F9
9C
7E
F8
= K . . N= . . . .
0350
06
36
86
OC
BD
F8
03
86
DO
B7
F3
CC
32
39
86
03
.6. .==. . .P7.L29. .
0360
B7
F4
08
86
51
B7
F4
08
39
86
03
B7
F4
08
86
10
7 • • # Q7 ••9««7«»*«
0370
B7
F4
08
39
44
44
44
44
84
OF
8B
30
81
39
23
02
7. . 9DDDD. . .0,9#.
0380
8B
07
37
F6
F4
08
57
57
24
F9
B7
F4
09
33
39
8D
. .1 . . .WW$.7. .39.
0390
Fl
08
A6
00
81
04
26
F7
39
A6
00
8D
D7
A6
00
08
..&...& .9& . .W& • .
03A0
20
D6
86
01
B7
F3
D4
20
06
7E
F8
21
7F
F3
D4
CE
V. .7.T . . . ! . .TN
03B0
FE
51
8D
97
BD
F9
29
8D
98
FF
F3
D5
8D
AO
86
11
03C0
8D
CO
8D
A5
8D
55
81
53
26
FA
BD
F8
03
8D
7B
81
.@*%.U.S&. SS ...*.
U3DU
O A
27
Do
O 1
81
il
2o
ED
1 F
Fi
A n
UA
oD
2D
O A
oU
A O
U2
B 7
F3
A f TT If 1
? V.JLa... ••""••/•
03E0
06
8D
18
BD
FA
6B
8D
21
7A
F3
06
27
47
7D
F3
D4
... G • . T
03F0
26
02
A7
00
Al
00
26
41
08
20
EB
8D
OC
B7
F3
00
&. f .!.StA. • • • 7 • •
0400
8D
07
B7
F3
01
FE
F3
00
39
8D
12
48
48
48
48
16
0410
8D
OB
IB
16
FB
F3
OA
F7
F3
OA
39
20
2D
8D
2B
20
9 -.+
0420
00
80
30
2B
47
81
09
2F
OA
81
11
2B
3F
81
16
2E
. .0+G. ./. . .+?
0430
3B
80
07
39
7C
F3
OA
27
8B
FF
F3
OC
86
20
BD
F8
q i -
/.e^.«. ..... .
0440
03
CE
F3
0C
BD
F8
OF
7E
F8
21
B6
F4
08
,47
24
FA
0450
B6
F4
09
84
7F
81
7F
27
Fl
39
8D
13
48
48
48
48
6 ' .9. . HHHH
0460
16
8D
OC
IB
16
FB
F3
OA
F7
F3
OA
39
7E
F8
21
BD
0470
F8
00
20
AD
00
00
00
00
E6
06
A7
06
E7
04
E6
03
_ i
.. ...... .....
*3o
C- ( 2.
§ "B02002002204E8603B7F4088651B7F408867EB7F3938D057EF8 2122
^rlB0218201530A600B7F300A601B7F30lFEF300080808FFF394 3936C5
S11B02308D13810D260D860A8D0B4F8D088D068D048D02323937F6F406
S11B024808575724F9B7F40933398D77202150554E4348202850292CF7
S11B0260204C4F414420284C292C20564552494659202856293F048DCD
S11B02781CBDF800815026022015814C26022054815626022050811BF7
S11B0 29026C07EF8212049BDF96CFEF37E09FFF37E8D3F8D3F86128DA5
S11B0 2A83DC6254F8D385A26FAFEF37CFFF308B6F37FB0F309F6F37EE2
S11B02C0F2F308262381102521201D30A600B7F300A601B7F301FEF315
S11B02D800080839206120612069206D2057205B860F8B04B7F3028067
S11B02F003B7F3048642BDF8038DD020090D0A000000005331048D3DD2
S11B03085FCEF3028D39CEF3088D348D32FEF3088D2D7AF30426F9FF66
S11B0320F3085337308D2033FEF30809BCF37E26868D98200353390479
S11B03388D587EF821201F206B205F203D204BEB00204EBDF99C7EF8FB
S11B03500636860CBDF80386D0B7F3CC32398603B7F4 088651B7F4 080E
S11B0368398603B7F4088610B7F4083944444444840F8B308139230245
S11B03808B0737F6F4 08575724F9B7F40933398DF108A600810426F7ED
S11B039839A6008DD7A6000820D68601B7F3D420067EF8217FF3D4CE8C
S11B03B0FE518D97BDF9298D98FFF3D58DA086118DC08DA58D558153FA
S11B03C826FABDF8038D7B813927D6813126ED7FF30A8D2D8002B7F3 5B
S11B03E0068D18BDFA6B8D217AF30627477DF3D42602A700A10026418A
S11B03F80820EB8D0CB7F3008D07B7F301FEF300398D124848484816 55
S11B04108D0B1B16FBF30AF7F30A39202D8D2B200080302B4781092FE2
S11B04280A81112B3F81162E3B8007397CF30A278BFFF30C8620BDF8 6E
S11B044003CEF30CBDF80F7EF821B6F4084724FAB6F409847F817F2781
SJ4B0458F1398D1348484848168D0C1B16FBF30AF7F30A397EF821BD45
af 70470F80020ADBF
S9T530000FC
Appendix D (con't)
1) TSC SPACE VOYAGE
00E9
7E
F806
PDATA
OOEC
7E
F986
OUTHR
OOEF
7E
F982
OUTHL
00F2
7E
F9B4
OUTS
OOF5
7E
F803
DUTCH
00F8
•7E
F800
INCH
OOFB
7E
F04A
RANDOM
OlOO
8E
F36F
STACK
04DC
20
20
53
44 54
45
3A
20
04
ODAO
20
20
5B
48 4C
44
3A
20
04
0DB6
OD
04
0E95
43
4B
2D
53 48
49
45
4C
44
53
20
48
4F 4C
44
49
4E
47 04
0F5C
OD
04
2) TSC DEBUG PACKAGE
4106
7E
F800
INCH
4109
7E
F803
OUTCH
410C
7E
F821
MONITOR
410F
F404
KEYBOARD P/A
42A1
2B
OA
BMI PCRLF2
CHECKS FOR
42A3
A6
00
LDAA 0,X
CHAR. FROM
42A5
01
NOP
KEYBOARD
42BE
2B
FC
BMI WAITR1
42C0
01
NOP
CHECK FOR CHAR.
42C1
A6
00
LDAA 0,X
42C5
Bl
4112
CMPA DEL
CNTRL C?
5999
OD
04
NOTE: An "ESC" Character wil 1 stop the display. A control 'C will restart it.
This is the only difference from standard operation. It is necessary due
to the operation of the keyboard scan routine.
3) TSC DISASSEMBLER
1900
8E
F36F
STACK
190C
7E
F803
OUTCH
190F
7E
F800
INCH
197A
OD
04
D-2
4) TSC KLINGON CAPTURE
7E
F806
PDATA
7E
F803
OUTCH
7E
F800
INCH
7E
F04A
RANDOM
7E
F821
CONTROL
8E
F36F
STACK
OD
OA OA
OA OA
002F
0032
0035
0038
003B
003E
03B2
03D5
040F
04 5A
04 7D
0499
04D1 (Replace all NULLS
051A with LF's, which
055E TVBUG will not
058B Respond to).
05C7
0605
0672
0694
06B1
06E4
0724
074C
0765
0765
079F OD OA OA OA OA OA
5) TSC RANDOM NUMBER GENERATOR
Use Quick Load Function to enter. Start Location F04A. Change all 'AO' to 'FO'
and seed FO 70, 1,2, 3, 4 with Non-Zero Numbers.
6) TSC BATTLESHIP
0100
8E
F36F
STACK
0107
7E
F803
OUTCH
01 OA
7E
F800
INCH
01CO
7E
F821
MONITOR
066E
OD
04
0732
OA
OA OA
OA OA
7) TSC STOCKMARKET
0102
7E
F803
OUTCH
0105
7E
F800
INCH
0108
7E
F806
PDATA
D-3
01 OB
7E
F982
OUTCH
040E
7E
F986
OUTHR
0111
7E
F821
CONTROL
0114
7E
F04A
RANDOM
0117
8E
F36F
STACK
04C0
OD
OD
OA
OA OA
OA
04ED
OD
OA
OA
OA OA
OA
058A
OD
OA
OA
OA OA
OA
05B7
OD
OA
OA
OA OA
OA
05E6
OD
OA
OA
OA OA
OA
0621
OD
04
8) TSC HANGMAN
0102
7E
F803
OUTCH
0105
7E
F800
INCH
0108
7E
F806
PDATA
01 OB
7E
F9B4
OUTS
01 OE
7E
F821
CONTROL
0111
7E
F04A
RANDOM
0114
8E
F36F
STACK
021F
OD
04
0245
OD
OA OA
OA OA
9) TSC ACEY- DUCEY
0034
7E
F04A
RANDOM
0037
7E
F806
PDATA
P03A
7E
F803
OUTCH
003D
7E
F800
INCH
0040
7E
F982
OUTHL
0043
7E
F986
OUTHR
0046
8E
F36F
STACK
0223
OD
04
022A
OD
0241
OD
02AF
OD
OA
OA
OA OA
02FD
OD
OA
OA
OA OA
D-4
iz4
10) TSC 'CRAPS'
0022
7E
F04A
RANDOM
7C
/ c
Fftflfi
rouu
r Un 1 M
0028
7E
F803
OUTCH
002B
7E
F800
INCH
002E
7E
F982
OUTHL
0031
• 7E
F986
OUTHR
0034
7E
F821
CONTROL
0044
8E
F36F
STACK
0238
OD
04
0243
OD
0252
OD
02 5A
OD
0269
OD
0289
OD
02A1
OD
OA OA
OA OA
032E
OD
11) TSC MASTERMIND
0042
7E
F800
INCH
0045
7E
F803
OUTCH
0048
7E
F806
PDATA
004B
7E
F9B4
OUTS
004E
7E
F982
OUTHL
0051
7E
F986
OUTHR
0054
7E
F821
CONTROL
0057
7E
F04A
RANDOM
005A
8E
F36F
STACK
0173
OD
OA
OA
OA OA
018A
01AB
01C1
01CF
01E7
0206
OD
OA
OA
OA OA
D-5
/35
12) TSC CARD SHUFFLE AND DEAL
13) TSC
0061
BD
F04A
RANDOM
0100
8E
F36F
STACK
0115
BD
F803
OUTCH
Ulin
DU
rouo
uu ! un
011F
BD
F803
OUTCH
01 2E
BD
F806
PDATA
0137
BD
F806
PDATA
UIOD
nn
uu
0141
00
OD
OD
04
014B
BD
F803
OUTCH
NUMBER
GUESS
1
0020
8E
F36F
STACK
0028
BD
F806
PDATA
002B
BD
F04A
RANDOM
0039
BD
F806
PDATA
003C
BD
F800
INCH
004A
BD
F806
PDATA
0058
BD
F806
PDATA
0060
BD
F806
PDATA
0068
BD
F806
PDATA
0071
BD
F806
PDATA
0076
BD
F986
OUTHR
007C
BD
F806
PDATA
007F
BD
F800
INCH
0086
BD
F821
CONTROL
0089
00
OA
OA
OA
00A6
00
OA
OA
OA
OOBA
OD
OA
OA
OA
00D3
OD
OA
OA
OA
OODF
OD
OA
OA
OA
OOEC
OD
OA
OA
OA
00F9
OD
OD
OA
OA
on A
00
OA
OA
OA
01 2C
OD
OA
OA
OA
D-6
14) TSC NUMBER GUESS II
0042
7E
F803
0UTCH
0045
7E
F800
INCH
0048
7E
F806
PDATA
004B
7E
F982
0UTHL
004E
7E
F986
0UTHR
0051
7E
F821
CONTROL
0054
7E
F04A
RANDOM
0057
8E
F36F
STACK
0125
0D
04
0155
0D
OA
OA
OA OA
01 6B
0183
01ED
0D
OA
OA
OA OA
15) TSC HURKLE
0022
7E
F04A
RANDOM
0025
7E
F806
PDATA
0028
7E
F800
INCH
002B
7E
F803
OUTCH
002E
7E
F821
CONTROL
0038
8E
F36F
STACK
013C
0D
04
01 5D
0D
01A3
OD
16) TSC ROVER
0022
7E
F04A
RANDOM
0025
7E
F806
PDATA
0028
7E
F800
INCH
002B
7E
F803
OUTCH
002E
7E
F821
CONTROL
0049
8E
F36F
01B8
OD
04
01C3
OD
01D2
OD
022D
OD
D-7
/3?
17)
TSC SWITCH
0102
7E
F800
INCH
0105
7E
F806
PDATA
0108
7E
F982
OUTHL
01 OB
7E
F986
OUTHR
010E
7E
F9B4
OUTS
0111
7E
F821
CONTROL
0114
7E
F04A
RANDOM
0215
OD
04
02 3D
OD
OD OA
OA OA
18) TSC CHOM
0042
7E
F803
OUTCH
0045
7E
F800
INCH
0048
7E
F806
PDATA
004B
7E
F9B4
OUTS
004E
7E
F821
CONTROL
0051
8E
F36F
STACK
0178
OD
04
01A2
OD
04
01B8
OD
OD OA
OA OA
19) TSC 10K BASIC
0106
7E
F821
0109
7E
F800
01 OF
7E
F803
0112
7E
FOOO
0115
7E
F020
CONTROL (EXIT)
INCH
OUTCH
TINCH EXTERNAL ROUTINES
TOUCH
0042
F408
0888
OD
04
01F8
BD
01
C7
20
05
0252
BD
01
C7
20
06
0496
01
01
01
01C7
B6
F4
04
81
03
A clear screen may be accomplished by the following 2 statements in a program.
Print CHR $(12)
Poke HEX ("F3CC"), HEX("D0")
C8^ FOOO 37 C6 51 F7 F4 08 F6 F4 08 57 57 24 F9 B7 F4 09 33 39
r !fjCX c8TJ>S- F020 86 03 B7 F4 08 86 10 B7 F408 B6 F408 47 24 FA B6 F4 09
39
D-8
These Routines at $F000 are necessary for cassette Save and Load operation with
TVBUG. They may be placed any where in memory. The Lower Stack area is most
convenient.
External Plot Routings may be added by using the USR Function.
20) TSC REL0CAT0R
01F0
7E
F020
KCIN
021F
7E
F803
OUTCH
0222
7E
F800
INCH
0225
7E
F821
CONTROL
0242
8D
AC
02AA
BD
F020
KCIN
02B1
BD
F020
KCIN
05B1
OA
OA OA
OA 04
05B6
OA
OA OA
OA 04
05BB
OD
04
Note: Punch From 1F0 - 6B3 to include Lower jump
F020 86 10 B7 F4 08 B6 F4 08 47 24 FA B6 F4 09 39
Note: This Relocator will Load tape programs only from the S1-S9 format. If
TVBUG-type tapes are to used, First Load the tape, then use the relocator
to move the program. Also note that the Offset may be used for TVBUG
tapes, but data Blocks will not be preserved.
21) TSC TEXT EDITOR
0206
7E
F800
INCH
0209
7E
F803
OUTCH
020C
7E
F020
TINCH
020F
7E
F000
TOUCH
0458
OD
04
098B
7E
F821
CONTROL
0D92
OD
OA
OA
OA
OA
OA
OA
TOUCH
F000 37
C6
51
F7
F4
08
F6
F4
08
57
57
24
F9
B7
F4
09
33
39
TINCH
F020 86
03
B7
F4
08
86
10
B7
F4
08
B6
F408 47
24
FA
B6
F4
09
D-9
/39
22^ : TSC MNEMONIC ASSEMBLER
03gv\
8F
F36F
STACK
031B
7E
F821
CONTROL
0320
7E
E803
OUTCH
0323
7E
EOOQ
TOUCH
07CF
00
04
11D1
00
04
156F
00
OA OA
OA OA
FOOO 37 C6 51 F7 F408 F6 F408 57 57 24 F9 B7 F4 09 33
39
23) TSC TEXT PROCESSOR
0203 7E F803 OUTCH
0206 7E F800 INCH
0209 7E F821 CONTROL
1543 00 04
1471 B6 F404 2A 01 39 NEW BREAK ROUTINE
B6 F404 81 03 26 F8 FOR TV BUG
CE 1592 7E OC 08 01 (SEE BELOW)
This break routine shold be used with TV8UG instead of the current one.
0471
B6
F404 TSTBRK
LDAA PIA
0474
2A
01
BPL TSTBR4
CHARACTER?
0476
39
~~ TST8R2
RTS
0477
86
F404 TST8R4
LDAA PIA
047A
81
03
CMPA #$03
CNTRL 'C\?
047C
26
F8
BNE TST8R2
047E
CE
TI92
LDX #BRKSTR
POINT TO STRING
0481
7E
0C08
JMP. ST0P1
OUTPUT IT
0484
01
NOP
D-10
MICRO CHROMA 68
THE NEW "&UG"
FROM MOTOROLA
TVBUG 1.2®
NMOS Microcomputer Systems Applications
Austin, Texas
Prepared By
Tim Ahrens
Dave Williamson
Software by John Dumas
M) MOTOROLA INC.
Although the information contained herein, as well.as any information provided relative thereto, has been carefully reviewed and is
believed accurate, Motorola assumes no liability arising out of its application or use. Neither does it convey any license under its
patent rights nor the rights of others.
Copyright 1978 by Motorola Inc.
t
Introduction:
In a continuing effort to provide support for the users of MC6800's and MC6800 Family Peripherals, Motorola has
introduced products which will interface directly with a standard color television receiver.
Introducing Micro Chroma 68
This package contains the major kit components necessary to make a standard, unmodified color television
receiver into a monitor for a highly sophisticated computer system.
1) MC6808 Microprocessor with Clock Generator (MPU)
2) MC6846P3 RIOT with TVBUG
3) MC6821 Peripheral Interface Adapter (PI A)
4) MC6850 Asynchronous Serial Interface Adapter (ACIA)
5) MC6847 Video Display Generator (VDG)
6) MC1372 Video RF Modulator
7) Data sheets on all parts
8) Hardware/software descriptions
9) Complete system schematic
10) Complete parts list
I. VDG SYSTEM HARDWARE
The TVBUG system as shown in Figure 1, is
configured for a minimum hardware application. This
system includes the MC6808 microprocessor, the
MC6846 Timer, I/O, ROM with TVBUG 1.2, keyboard
interface chip, the MC6821 PI A, MC6850 ACI A for Serial
I/O, the MC6847 Video Display Generator, and an
MC1372 Video Radio Frequency (RF) modulator. In ad-
dition to this, the schematic shows 1 K bytes of RAM for
display, the STACK RAM area, and the user RAM. A
Kansas City Standard 300 baud cassette tape interface
is also shown for ease of program storage.
BASIC OPERATION
The new MC6808 (microprocessor with clock) is used
as the microprocessor and is coupled with the
MC6846P3 (ROM, I/O, and timer) for a permanent
monitor system. The MC6846P3 (TVBUG) has been
programmed to "talk" to the MC6847 VDG display RAM
as an output port, and a standard ASCII keyboard is
connected to the MC6821 for data input. The actual
hook-up of the MPU is standard to almost any dedicated
system with _a few exceptions. The MCM2114's cannot
have the R/W pulse applied to them during the normal
MC680X write cycle, as any data which is on the bus will
be written to the RAM. To solve this problem, the
combination of 02 with R/W will provide a delayed R/W
pulse within the MCM2114 specifications.
All address decoding for 8K bytes of RAM has been
done on board by use of the 74LS138 three to eight line
decoder. With the decoding scheme shown, up to 8K
bytes of user RAM can be placed on the bus without
further decoding, and decoding for every 1K block of
memory from D000 to FFFF has also been provided. This
latter decoding will provide the user with an option of
including up to an additional 5K of bytes of display RAM
to utilize the full 256 X 192 element graphic mode of the
MC6847. One note of caution though, no additional
decoding (i.e. 74LS138's) can be supported by the
higher order address bus lines without using the
traditional 8T26-28 bus extenders. An alternative to this
problem is to do a different decode with the present
138's, and use MCM6641's (4K X 1) RAM chips. This
would mean that additional RAM could be added, but
only in 4K blocks. The use of MCM2114's in this project
was selected because of the MCM2114's ability to be
added in 1K blocks, thereby reducing the initial cost of
the project.
The "Break" key on the board through the use of cross
coupled NAND gates provide the NMI (Non Maskable
Interrupt) input with a debounced key closure. Within
the TVBUG Monitor, the NMI vector causes the current
contents of the registers within the MPU to be displayed
on the TV screen.
The RESET is a normally open switch which does not
need to be debounced due to the RC time constant of the
3.3K O and 100 jjF capacitor, and the Schmitt trigger
input on the MC6808.
The MC6821 PIA is configured to receive key closures,
from a standard ASCII keyboard. The negative going
strobe must be at least a duration of 100 ms due to the
type of polling used to scan for a keyboard input.
Perhaps a more conventional way to poll the keyboard
would have been through the use of the PIA's IRQ line;
but by dedicating the IRQ vector to a keyboard input
routine, the capability of using this line for a user
function would have been lost.
Although the ACIA in this system is dedicated to a
Kansas City Standard tape interface unit, the inputs and
outputs could be switched to provide the user with a
different use for the serial I/O port.
I n the transmit mode, the clock for the ACIA, and tone
for the Kansas City Standard, is provided by an MC1455.
This 4800 Hz is fed into the transmit circuitry, and when
combined with the TX (transmit) data, provides the
traditional 2400 Hz for a Mark (1 ) and 1 200 Hz for Space
(0) required by the Kansas City Standard. This output
data is not the S1-S9 data format as used by some other
systems, but a binary format which is both faster, and
compatible with the many Motorola MEK6800D2 kits
now in use. The speaker audio is brought onto the board
and fed into the input of an MC14584. This hex Schmitt
trigger provides about 0.5 volts of hysteresis when
operated at 5 volts, and does an excellent job of squaring
up the incoming audio tones. Following this squaring of
the tones, the data is processed and fed into the RX
(receive) data pin of the ACIA. Connected to this is a
leading edge detector which is used to reset the binary
counter which feeds the RX clock signal. By doing the
clock recovery in this manner, the binary counter is
assured to be in synchronization with the data and
provide the proper clock pulse to the ACI A at the correct
time.
The cassette interface provided in this documentation
has proven to be a very effective and reliable method for
generating and recovering data from audio tapes, while
using only six CMOS packages.
THE VDG AND ASSOCIATED CIRCUITRY
The MC6847 VDG operates like a microprocessor. It
accesses its own RAM by putting out the specific
addresses on the bus. Because of this, the VDG address
bus must be separate from the MPU's address bus, but
both must have the ability to address the common
display RAM. By using the 8T97 tri-state buffers on the
address lines, wherever the "A", signal goes low,
signifying that the MPU is talking to the display RAM, the
VDG is turned off. In addition, the bidirectional data bus
buffers must have the same type of control. The other
inverters and NAND gates (U19-A, B and U16-A, B, C)
provide the display MCM2114's with the correct R/W
signal. The VDG directly generates the chrominance
and luminance analog (R-Y, B-Y, Y) output levels to be
fed to the MC1372 Radio Frequency (RF) modulator.
The new MC1372 modulator contains a chroma
subcarrier oscillator (3.§79 MHz to be used as a system
clock), and all other circuitry necessary to support direct
RF modulation to any standard color television set. As
shown in the schematic, the MC1372 clock is buffered
and fed directly to the MC6847 and MC6808 EXTAL
inputs where it is used as a system clock. This provides
an internal system clock of approximately 895 kHz (02).
The Tank L-C values shown (56 pF and .1//H) will
provide a center frequency of 67.25 MHz (channel 4).
The component values required for channel 3
operations are 75 pF and A/jH. This provides a center
frequency of 63 MHz. The 75 O output may be fed
directly to the set, or through a 75 to 300 O matching
transformer available wherever televisions or electronic
components are sold. Either method MUST include a 60
dB switch to minimize RF radiation problems (TVI). This
assures that the antenna is disconnected while using
TVBUG.
CONSTRUCTION HINTS
There are several devices on the schematic which
require adjustment, these include L1, R10, C4, and R6.
The following is a "tune-up" procedure for these.
The value of L1 determines the frequency of
operation, in other words, which channel you are on.
This coil can be bought as a A^H tuneable coil, or
fabricated on almost any type of coil form which uses a
ferrite slug for tuning. The prototypes were made on
forms 1/8 inch in diameter with 3 1/2 turns #30 gauge
wire wrap wire. After the coil has been made and placed
in the circuit, turn the television on to the desired
channel (3 or 4), and turn the slug until a picture is
presented on the screen. If all that is seen is "confetti" on
the set, the coil could possibly be resonating at the
wrong frequency. Change the channels until a picture is
seen. Turning the slug down into the coil lowers the
frequency (and channel), and unscrewing it produces
the opposite effect. If the picture is seen at a channel
which is not desired, adding more turns (one ortwo) will
lower the frequency.
The duty cycle adjustment varies the actual duty cycle
of the 3.58 MHz clock. This is an optional part, as the
MC1372 is internally set for a 50% duty cycle.
Adjustment should be made while observing a picture,
and tuning the pot until the best picture is obtained.
Y1's frequency adjustment trimmer, C4, should be set
for 3.57954 MHz with a frequency counter, or adjusted
until the television set responds with the correct colors.
The audio cassette standard has an adjustment, R10,
which should be tuned for best data at pin 2 of the ACI A.
This adjusts a time constant, and some chopping of the
waveform will be noticed until this adjustment has been
made.
Care should be taken in parts placement, as there are
several areas where there are low level analog signals
present. Fast digital signals do a good job of interfacing
with these, so keep as much space as possible between
them. Also be sure to adequately bypass as shown on
the schematic.
Conclusions; This minimum configuration provides
the user with a software and low density (64 X 32
element) color graphics development system. By
expanding this system with a minimum number of
components and enough support RAM (both display
and user RAM), a full color graphics system can be
implemented for any type of home computer, game, or
low cost color graphics system.
II. TVBUG 1.2 SOFTWARE
The TVBUG software monitor is provided in the
MC6846 combo chip along with an eight-bit parallel
interface and a programmable timer. It is designed to
implement the MC6847 and MC1372 in a
MC6800/01/02/03/08 based system. Micro Chroma 68
provides the user with an operating/debug system,
parallel interface to an ASCII keyboard, a Kansas City
Standard for an audio cassette interface, and an
interface to an unmodified color TV receiver.
HARDWARE CONFIGURATION MEMORY MAP
FFFF
TVBUG
F800
F7FF
I/O
F400
F3FF
STACK
FOOO
EFFF
USER DEFINED
E800
E7FF
DISPLAY RAM
D000
CFFF
USER DEFINED
0000
NOTE: All addresses are in hexidecimal.
SOFTWARE OPERATION
The operating procedure for each command is given
in the following paragraphs. All of these commands
assume that the system is under TVBUG firmware
control and the last data displayed on the screen was
"TVBUG" followed by a carriage return-line feed
(CRLF), and a blinking cursor.
RESET FUNCTION
The RESET function is used when power is first
applied, anytime TVBUG firmware loses program
control, and before a PUNCH, LOAD or VERIFY
command is used. To use this function:
Press the reset switch. TVBUG firmware will gain
program control and display "TVBUG" followed by
CRLF and blinking cursor. The TVBUG monitor is
ready for an input.
TVBUG COMMANDS
The following are TVBUG commands. Each command
is one letter followed by an optional modifier (address or
data). The modifier is always hexadecimal with leading
zeros assumed. The modifying field is terminated with a
non-hex entry (e.g. space bar). The modifier will be
either two or four hex digits depending on the command
mode. The TVBUG firmware may be used to debug
and evaluate a user program and to perform the
following functions:
1) G — GO TO ADDRESS "N" (USER PROGRAM)
2) L — LOAD KANSAS CITY STANDARD TAPE
(J-BUG FORMAT)
3) P — PUNCH DUMP KANSAS CITY STANDARD
(J-BUG FORMAT)
4) V — VERIFY KANSAS CITY TAPE
5) M — MEMORY CHANGE
6) E — EXAMINE A BLOCK OF MEMORY
7) Q — QUICK LOAD OF HEX DATA
8) F — FILL A BLOCK OF MEMORY
9) O — OFFSET CALCULATION
10) R — DISPLAY CONTENTS OF MPU REGISTERS
11) Z — CLEAR SCREEN AND INITIALIZE I/O
12) S — SET A BREAKPOINT WITH ADDRESS "N"
13) U — UNSET BREAKPOINT WITH ADDRESS "N"
14) D — DELETE ALL BREAKPOINTS
15) B — PRINT OUT ALL BREAKPOINTS
16) N — TRACE THE NEXT INSTRUCTION
17) C — CONTINUE EXECUTION FROM THE
CURRENT LOCATION
18) T — TRACE "N" INSTRUCITONS
19) !, # — USER DEFINED FUNCTIONS
G — Go To User Program Function
This function allows the user to exeucte a USER
program. To use this function type a "G", starting
address, and return. The firmware will execute a USER
program.
L — Load Function
This function allows the user to load a Kansas City
Standard formatted audio cassette tape. This includes
tapes punched using Motorola's J-Bug monitor. To use
this function:
1 . Press Reset
2. Type "L". The firmware will CRLF and ask for an
offset, (16 bits, Hexadecimal, with leading zeros
assumed).
3. Type "return". Start the tape by pressing "play" on
the cassette recorder. Insure that the recorder
"ear" to P.C. board "ear" is connected.
4. After approximately 40 seconds of leader, the firm-
ware will print a name if any, and a "B" for each 256
bytes and a "B" for the remainder, if any. If the data
was not stored into memory correctly, the "B" is
followed by the message, "MEMORY BAD" and the
firmware will return to TVBUG program control.
P — Punch Dump Function
This function allows the user to store data from
memory on audio cassette tape using the Kansas City
Standard. To use this function:
1 . Press Reset.
2. Type "P". The firmware will CRLF and ask for a
beginning address.
3. Enter beginning address and type a space. The
firmware will ask for a ending address.
4. Enter ending address. The firmware will CRLF and
ask for a name.
5. Enter the name. The name may be up to thirty-two
(31 +CR) characters long. If tape must be read by a
J-Bug monitor, do not use "B" or "G" in the name
as these characters are interpreted by the J-Bug
firmware as control characters.
6. Connect the tape recorder to the P.C. board "mike"
to "mike" and start recording.
7. Type return. The firmware will print leader (F's),
followed by an 80 (Start Char.), Name (ASCII
Code), Byte count, Starting Address, and "42"
(ASCII "B") followed by data. A short leader
terminated with "42" (ASCII "B") will be printed for
each 256 bytes.
V — Verify Kansas City Tape
This function is used to verify a PUNCH or
LOAD operation. To use this function:
1. Press Reset.
2. Enter a "V". The firmware will CRLF and ask for an
offset.
3. Enter the offset. The offset must be the difference
between the existing start address and the desired
start address; if none, type a space.
4. Set up the tape recorder as shown in the load
function.
5. The firmware will print file name, CRLF, and printa
"B" for each 256 bytes. If the data on the tape and
the contents of the memory do not agree, the
firmware will print "MEMORY BAD" and return to
TVBUG program control.
M — Memory Change Function
This function will examine a location in memory,
change the contents if desired, and return the contents
to memory in that order. To use the MEMORY CHANGE
function:
1. Enter an "M".
2. Enter the address to be changed and press line
feed. TVBUG firmware will CRLF and print the
address followed by data.
3. Enter new data if desired. Line feed will then return
data to memory and open the next location. Up
arrow (/s) will return data to memory and open
location minus one. To return to TVBUG control
program, press the return key.
TVBUG
M O
0000 XX 00
0001 XX 00
TVBUG
E — Block Memory Examine Function
This function allows the user to display a block of
memory on the screen. To use this function:
1. Enter an "E".
2. Enter the beginning address of the block to be
examined and type a space. The firmware will
ask for ending address.
3. Enter an address and type a space.
4. The firmware will CRLF and print the beginning
address and contents of the first eight memory
locations. Underneath the contents of each
location is a period. If the data at that location
is an ASCII character, the character will be
printed underneath the data. Each time a space
is entered, the next eight locations will be
printed until it reaches the ending address; at
which time the firmware will return to the
TVBUG control program.
TVBUG
E
BEG ADR? 0 END ADR?£
0000 54 56 20 42 55 47 XX XX
TV BUG..
0008 XX XX XX XX XX XX XX XX
TVBUG
Q — Quick Load Function
This function allows the user to enter blocks of hex
data using the MEMORY EXAMINE function. To use this
function:
1 . Type "Q". The firmware will CRLF and ask for the
beginning address.
2. Enter beginning address and type a space. The
firmware will ask for the ending address.
3. Enter ending address and type return. The
firmware will CRLF, print the beginning address
and wait for data.
4. Enter hex data followed by a space. The firm-
ware will CRLF on the eighth location, print the
address and wait for data. When the ending data
has been entered, the firmware will return to
TVBUG control program.
Typical Display:
TVBUG
Q
BEG ADR? 0 END ADR? F
0000 XX XX XX XX XX XX XX XX
0008 XX XX XX XX XX XX XX XX
TVBUG
F — Memory Fill Function
This function allows the user to fill a block of memory
with a character. To use this function:
1. Enter an "F". The firmware will CRLF and ask for
the beginning address.
2. Enter the beginning address and type a space.
The firmware will ask for an ending address.
3. Type a space. The firmware will CRLF and ask
for a character.
4. Enter the desired character and type return. The
firmware will write the character into each of the
defined memory locations and return to TVBUG
program control.
Typical display for MEMORY FILL function:
TVBUG
F
BEG ADD XXXX END ADD XXXX
CHAR? XX
TVBUG
O — Offset Calculation Function
This function allows the user to calculate sixteen bit
offsets. If the offset is outside the eight bit "branch"
limits, the firmware will print the offset followed by the
message "TOO FAR". This function simplifies the
calculation of offsets for branch instructions. To use this
function:
1. Type an "O". This firmware will CRLF and ask for
the beginning address.
2. Enter the address of the branch op code and
type a space. The firmware will CRLF and ask for
the ending address.
3. Enter the address of branch destination and type
return. The firmware will CRLF, print the offset
and return to TVBUG control program. Offsets
will be printed as a sixteen bit word. The least
significant eight bits will be the offset.
1) Positive Offset:
O
BEG ADR? jO END ADR?_F
OFFSET = 000D
TVBUG
2) Negative Offset:
O
BEG ADR?_F END ADR?_0_
OFFSET = FFEF
TVBUG
3) Offset Outside of an eight bit branch:
O
BEG ADR? 0. END ADR? 82
OFFSET = 0080 TOO FAR!
TVBUG
R — Print contents MPU Registers
This function allows the user to examine the MPU
registers by reading them from the stack. To use this
function type "R". The firmware will place contents of
the MPU registers onto the stack RAM and then place
them on the screen in the following format:
CC B A X P S
XX XX XX XXXX XXXX XXXX
Where:
CC = condition code register
B = B accumulator
A = A accumulator
X = index register
P = program counter
S = stack pointer
Z — Clear Screen Function
To use this function type "Z". The firmware will fill the
display memory block with a space character, clear the
screen, initialize the system I/O ports, and return to
TVBUG program control.
BREAKPOINTS
There are seven TVBUG commands dealing with
breakpoints.
1. S — SET BREAKPOINT WITH ADDRESS "N"
2. U — UNSET BREAKPOINT WITH ADDRESS "N"
3. D - DELETE ALL BREAKPOINTS
4. N - NEXT INSTRUCTION
5. T — TRACE "N" INSTRUCTIONS
6. C — CONTINUE EXECUTION FROM CURRENT
LOCATION
7. B — PRINT OUT ALL BREAKPOINTS
S — Set A Breakpoint With Address "N"
To set a breakpoint type an "S" followed by the
address, then type return. The firmware will print the
breakpoint address with up to seven additional
breakpoints that might be set, and return to TVBUG
program control.
NOTE: Breakpoint 0000 is illegal.
Typical display for Setting Breakpoints:
TVBUG
S 10
0010
TVBUG
S20
0010 0020
TVBUG
S 30
0010 0020 0030
TVBUG
U - Unset A Breakpoint With Address "N"
To unset a breakpoint type a "U" followed by the
address, then return. The firmware will remove the
breakpoint and return to TVBUG control program.
Typical Display for Unsetting Breakpoints:
TVBUG
U 10
TVBUG
U 20
TVBUG
D — Remove All Breakpoints
To remove all breakpoints, type a "D". The firmware
will remove the breakpoints and return to TVBUG
program control.
B — Print Out All Breakpoints
To examine breakpoints type a "B". The firmware will
print all breakpoints and return to TVBUG control.
NOTE: The following commands assume that a program
has been executed and halted at a breakpoint.
N — Trace The Next Instruction
This command allows the user to single step through a
series of instructions. To use this command, type an "N".
The firmware will execute the NEXT instruction and
print the contents of the MPU Registers. It will then
return to TVBUG program control.
Typical Display for NEXT Instruction:
XX XX XX XXXX 0030 XXXX
TVBUG
N
XX XX XX XXXX 0032 XXXX
TVBUG
C — Continue
The CONTINUE command is used to step the
program from breakpoint to breakpoint. To use this
command, type a "C". The firmware will execute the user
progam from the current location to the next breakpoint,
and print out the contents of the stack.
Typical Display for CONTINUE Instruction:
(Breakpoints set at 0030, 0040, 0050)
XX
c
XX
XX
XXXX
0030
XXXX
TVBUG
XX
XX
XX
XXXX
0040
XXXX
TVBUG
c
XX
XX
XX
XXXX
0050
XXXX
TVBUG
T — Trace "N" Instructions
This command works exactly like the NEXT
command, except that after entering "T" the firmware
will ask for the number of instructions to be traced. Enter
the hexadecimal number and the firmware will print out
contents of target stack at each instruction. Then it will
return to TVBUG program control.
Typical Display for TRACE Instructions:
TVBUG
XX
XX
XX
XXXX
0030
XXXX
T3
XX
XX
XX
XXXX
0033
XXXX
XX
XX
XX
XXXX
0036
XXXX
XX
XX
XX
XXXX
0039
XXXX
USER DEFINED FUNCTIONS
TVBUG contains three user defined jumps that may be
called from the keyboard and two user defined jumps
called by the monitor. All jumps are initialized with a
RESET. However, if the user wishes to prevent these
vectors from being lost on RESET, the stack RAM may
be hardware deselected from F390 to F29F inclusive and
a small ROM, containing the permanent vectors,
patched over these locations (see listing).
To use the keyboard jumps, type the appropriate
character (!, ", #). Firmware will then execute the
program from the address stored in temporary RAM at
the following locations:
CHAR. INST. (7E) HIGH BYTE LOW BYTE
! F396 F397 F398
F399 F39A F29B
# F39C F39D F39E
USER INPUT FUNCTION
This function allows the user to insert a user routine
into the monitor input loop. Each time the monitor goes
around its input loop it checks the user input three byte
vector. Since it is initialized to RTS, the monitor will
ignore this vector until the user changes it. The three
temporary RAM locations' reserved for the user input
vector are:
INST. (7E) HIGH BYTE LOW BYTE
F390 F391 F392
To use this function, first write user vector into
stack.
Example:
LDAA: User vector (High Byte)
STAA: $F391
LDAA: User vector (Low Byte)
STAA: $F392
LDAA: #$7E
STAA: $F390
Initialization complete
If this vector is entered with the keyboard,
the jump instruction (7E) must be entered
last.
The USER INPUT routine must set the carry bit if there
was a user input. If there was no input it must clear the
carry bit. All user I/O routines must end with RTS.
USER OUTPUT FUNCTION
This function allows the user to insert a user output
routine into the monitor output routine. Each time the
monitor performs its OUTCH (output character) routine
it checks the three temporary RAM locations reserved
for the user output vector.
Since these locations are initialized to RTS, the
monitor will ignore them until they are changed by the
user.
INST. (7E) HIGH BYTE LOW BYTE
F393 F394 F395
To use this function, write the jump vector into
temporary RAM. If the vector is left in temporary RAM,
I/O devices such as a printer or modem may be
controlled on the fly by changing the instruction
location (F393) from the jump (7E) to RTS (39). All user
I/O routines must end with RTS.
The following software listing contains the monitor
jump table and temporary RAM locations as well as
other useful routines.
Only the jump table and temporary RAM locations will-
be guaranteed on future versions of TVBUG. Caution
should be exercised when using any other routines.
FLOW CHART FOR USER INPUT FUNCTION
FLOW CHART FOR USER OUTPUT ROUTINE
OUTPUT TO
PRINTER, PUNCH,
MODEM, ETC.
RTS
TVBUG1 ft VDG MONITOR FOR 68©Q, 81, 62, 83, ©8,
SYSTEMS
NAM T'v'BUQ
TTL ft VOG MONITOR FOR 68O0j 0 / .. 02, 03, OS
REV i
COPYRIGHT ( C > 1978 BY JOHN DUMAS
FOR tiQTQRQL.fi INC.
6 APR ?'&
TVBUG <TM> MOTOROLA
AUSTIN.. TEXAS
MICROCOMPUTER CAPITAL OF THE WORLD!
CURRENT REVISION DATE = SEPT BS 1978
1--QLLQNING FlRE TVBUG COMMANDS
EfiCH COMMRND IS i LETTER FOLLOWED
BY FIN OPTIONAL MODIFIER ( ADDRESS OR
DATA). MODIFIER IS ALWAYS HEX HI TH
L EflD I NG ZERO< S > ASSUMED . MOD I F IER
FIELD IS TERMINATED WITH h NON-
hEX EN TR Y< I.E. SPACE BHR > . MOD I F I E R
WILL BE EITHER £ OR 4. HEX DEPENDING
UPON COMMAND MODE .
L LQftD K.C. STANDARD THFE <D2 FORMAT)
M MEMORY CHHNGE
P PUNCH K.C. STANDARD TflPE <D2 FORMA T )
R DISPLAY CONTENTS OF THRGET STACK
CC B fl X P S
B PR IN T OU T HLL BREHKPOl N TS
F FILL MEMORY BLOCK
C CONTINUE EXECUTION FROM CURRENT LOCATION
N NEXT INSTRUCTION TRACE
T TRACE "AT INSTRUCTIONS
G GO TO LOCATION "N"
D DELETE HLL BREAKPOINTS
U UNSET BREAKPOINT WITH ADDRESS 'H'
E EXAMINE BLOCK OF MEMORY
Q QUICK LOAD OF HEX DATA
0 OFFSET CALCULATION (BRANCH)
S SET A BREAKPOINT WITH ADDRESS 'H'
V VERIFY KC TAPE <D2 FORMAT)
Z CLEAR TV SCREEN
! USER FUNCTION #/
" USER FUNCTION #2
# USER FUNCTION #J
"ALTHOUGH THE INFORMATION CONTAINED HEREIN, AS WELL AS ANY INFORMATION PROVIDED
RELATIVE THERETO, HAS BEEN CAREFULLY REVIEWED AND IS BELIEVED ACCURATE, MOTOROLA
ASSUMES NO LIABILITY ARISING OUT OF ITS APPLICATION OR USE; NEITHER DOES IT CON-
VEY ANY LICENSE UNDER ITS PATENT RIGHTS NOR THE RIGHTS OF OTHERS."
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CON 7 RE
TV BUG PARTS LIST
Integrated Circuits: LSI, MSI, SSI
QTY
PART #
FUNCTION
1
MC6847P
VDG
1
MC6808P
MPU
1
MC6821P
PIA
I'lO DOH Or O
TV Rllft_RT/nT
1 V DUla-K 1/ U 1
1
MC6850P
AC I A
6
MCM2114
RAM
1
MC1372P
RF MODULATOR
2
MC6887P
8T97
2
MC6889P
8T28
3
MC74LS138P
3 TO 8 DECODER
3
MC74LS00P
QUAD NAND
1
MC74LS04P
HEX INVERTER
1
MC1455P
OSCILLATOR
Integrated Circuits:
CMOS
MANUFACTURER
MOTOROLA
DESIGNATION
U3
Ul
U2
U4
U15
U9-U14
U20
U5, U6
U7, U8
U28, U29, U30
U17, U18, U19
U16
U27
MC14013BP
MC14040BP
MC14584BP
MC14070BP
MC14001BP
DUAL D F-F
12 BIT COUNTER
SCHMIDT HEX. INV.
EXOR
NOR
MOTOROLA
U25, U26
U24
U22
U21
U23
Resistors (1/4W, +5% composition):
QTY
VALUE: (SL)
DESIGNATION
3
240
Rl, R2, R3
2
5.6K
R7, R14
1
75
R4
1
22K
R9
1
370
R15
1
750
R5
2
10K
R8, R13
1
2K
R19, R26
2
20K
Rll, R12
6
3.3K
R18, R21, R22
R20, R23, R24
1
IK
R17
1
100K
R16
1
510
R25
Adjustable Resistors (1 Turn, Carbon Film, 110%)
1
1
10K
20K
R6
RIO
Capacitors (in microfaroads, 25WVDC + 10%, Ceramic):
QTY
VALUE
DESIGNATION
12
0.01
100 (electro-
lytic) 16V
50pF
0.1
.001
.002
2700pF
1500pF
56pF
Misc. Components
QTY COMPONENT
CI, C2, C9, C12, C13, C14,
C15, C16, C17, CIS, C19, C20
C15, C21
C5
C6, C8, Cll, C22, C23
C7
C14
CIO
C13
C3
Variable Capacitor 9 to 35pF
Crystal 3.57954 MHz
Transistor 2N2222
Keyboard-Cherry B70-05AB
Switch Momentary B8600
Switch, DPDT,
60dB separation
<a RF
Transformer,
75 to 300
Diodes, IN 914
DESIGNATION
C4
Yl
Ql
SI, S2
S3
Tl
Dl 9 D2
MICROCHROMA 68 PARTS LIST
MICROCHROMA 68 PARTS LIST (CONTINUED)
MICROCHROMA 68 KITS PARTS LIST (CONTINUED)
Quantity
Ref Des
Value
43
C1-C3, C7, CIO, C13,
.luF
C15, C20-23.C26-57
2
C4, C58
100 uF 9 16V Electrolytic
1
C5
9-36pF "Variable
1
C6
50pF
4
C8, Cll, C14, C19
.OluF
1
C9
,002uF
1
C12
56pF
2
C16, C25
lOOOpF
1
C17
,02uF
1
C18
1500pF
1
C24
2700pF
Resistors (1/4W)
1
Rl
5k Pot
1
R2
10k Pot
1
R3
510
1
R4
22k
6
R5, RIO- 12, R29, R30
3.3k
1
R6
15k
1
R7
33k
2
R8, R13
5.6k
1
R9
360
3
R14, R15, R18
240
1
R16 '
75
1
R17
750
2
R19, R34
10k
8
R20, R23-25, R28, R31-33
100k
1
R21
Ik
2
R22, R27
2k
1
R26
20k
Motorola Integrated Circuits
Quan-
Miscellaneous Components
nti ty
Ref Des
P/N
Description
1
Ul
MC14584B
CMOS Hex Schmitt Trigger
U2, U12
MC14013B
CMOS Dual D Flip- Flop
1
U3
MC6850*
NMOS Asynchronous Communi cations Interface
Adapter (ACIA)
U4
MC6847*
NMOS Video Display Generator (VDG)
U5
MC1372*
Linear Color TV Video Modulator Circuit
U6
MC14070B
CMOS Quad Excl us ive-OR Gate
U7
MC14040B
CMOS 12-Bit Binary Counter
U8
MC1455
Linear Timing Circuit
U9
MC6820/6821*
NMOS Parallel Interface Adapter (PIA)
U10, U13, U15
SN74LS00
TTL Quad 2- Input NAND Gate
Ull, U14
SN74LS04
TTL Hex Inverter
U16
MC6846P3*
ROM, I/O, Timer (RIOT) w/TVBUG 1.2 Monitor
U17, U18
MC6887/ 8T97
Linear Hex Three-State Buffers
U19, U22-24
SN74LS138
TTL 3-to-8 Line Decoder
U20
SN74LS21
TTL Dual 4-Input AND Gate
U21
MC14001B
CMOS Quad 2- Input NOR Gate
U25
MC6808*
NMOS Microprocessor (MPU) with Clock
2
U26, U27
MC6889P/8T28
Linear Quad Bus Transceiver
2
U28, U29
SN74LS08
TTL Quad 2- Input AND Gate
30
U30, U59
MCM21 14-45
NMOS IK x 4 Static RAM
Quan'
ity Ref Des Description
51 Momentary SPDT (Break)
52 Momentary SPST (Reset)
53 DPDT Switch (60dB <? RF)
Yl 3.579545 MHz Crystal
Ql 2N2222A Transistor
Cherry "Pro" Keyboard (Cherry P/N B70-05AB)
or equivalent with interface cable terminated
with 24-pin header compatible with Jl
LI .luH adjustable Inductor
Tl 75 to 300 Matching Transformer
P2 Phono plug with compatible RF interconnect cable
P3, P4 Phono plugs with compatible audio interconnect
cable
Vesti gal Sideband Filter tuned to pass desired
channel frequency
PCB* Mi croChroma 68 Printed Circuit Board (Motorola
P/N SCPR0M02PCB)
Dl, D2 IN914 Serial Diode
Included in MICROCHROMA 68 Kits (Motorola P/N SCPR0M02PCB)
♦Included in Mi croChroma 68 Kits (Motorola P/N SCPR0M02)
MicroChroma 68 Assembly Parts List
Capacitors
Ref Des
Value
Ref Des
CI
.luF
C30
C2
.luF
C31
C3
.luF
C32
C4
lOOuF (i
i 16V Electrolytic
C33
C5
9-35pF
Variable
C34
C6
5QpF
C35
C7
.luF
C36
C8
.OluF
C37
C9
.002uF
C38
CIO
.luF
C39
Cll
.OluF
C40
C12
56pF
C41
C13
.luF
C42
Cl4
.OluF
C43
C15
.luF
C44
C16
lQGGpF
C45
C17
.02uF
C46
C18
1500pF
C47
C19
.OluF
C48
C20
.luF
C49
C21
.luF
C50
C22
.luF
C51
C23
.luF
C52
C24
2700pF
C53
C25
lOOOpF
C54
C26
,luF
C55
C27
.luF
C56
C28
.luF
C57
C29
.luF
C58
Value
.luF
.luF
.luF
.luF
.luF
.luF
.luF
.luF
.luF
.luF
.luF
.luF
.luF
.luF
.luF
.luF
.luF
.luF
.luF
.luF
.luF
.luF
.luF
.luF
.luF
.luF
.luF
.luF
lOOuF ? 16V Electrolytic
MicroChroma 68 Assembly Parts List (Continued)
Resistors (1/4W)
Ref Des
Value fntimc^
Rl
5k Potentiometer*
R2
10k Potentiometer*
R3
510
R4
22k
R5
3.3k
R6
15k
R7
33k
R8
5.6k
R9
360
RIO
3.3k
Rll
3.3k
R12
3.3k
R13
5.6k
R14
240
R15
240
R16
75
R17
750
Ref Des
Value (Ohms)
R18
240
R19
10k
R20
100k
R21.
lk
R22
2k
R23
100k
R24
100k
R25
100k
R26
20k
R27
2k
R28
100k
R29
3.3k
R30
3.3k
R31
100k
R32
100k
R33
100k
R34
10k
*1 or 10 turn linear taper
Motorola Integrated Circuits
Ref Des P/N Description
■ Ul MC14584B CMOS Hex Schmitt Trigger
U2 MC14013B CMOS Dual D Flip-Flop
U3 MC6850** NMOS Asynchronous Communications Interface Adaptor (ACIA)
U4 MC6847** NMOS Video Display Generator (VDG)
U5 MC1372** Linear Color TV Video Modulator Circuit
U6 MC14070B CMOS Quad Exclusive-OR Gate
U7 MC14040B CMOS 12-Bit Binary Counter
U8 MC1455 Linear Timing Circuit
U9 MC6820/MC6821**NM0S Parallel Interface Adapter (PIA)
♦♦Included in MicroChroma 68 Kit Motorola P/N SCPR0M02
MicroChroma 68 Assembly Parts List (Continued)
Ref Des
P/N
Description
U10
SN74LS00
TTL Quad 2- Input NAND Gate
Ull
SN74LS04
TTL Hex Inverter
U12
MC14013B
CMOS Dual D Flip-Flop
U13
SN74LS00
TTL Quad 2- Input NAND Gate
U14
SN74LS04
TTL Hex Inverter
U15
SN74LS00
TTL Quad 2-Input NAND Gate
U16
MC6846P3**
NMOS ROM, I/O, Timer (RIOT) with TVBUG 1.2 Monitor Program
U17
MC6887/MC8T97
Linear Hex Three-State Buffers
U18
MC6887/MC8T97
Linear Hex Three-State Buffers
U19
SN74LS138
TTL 3-to-8 Line Decoder
U20
SN74LS21
TTL Dual 4- Input AND Gate
_ U21
MC14001B
CMOS Quad 2-Input NOR Gate
U22
SN74LS138
TTL 3-to-8 Line Decoder
U23
SN74LS138
TTL 3-to-8 Line Decoder
U24
SN74LS138
TTL 3- to-8 Line Decoder
U25
MC6808**
NMOS Microprocessor (MPU) with Clock
U26
MC6889/MC8T28
Linear Quad Bus Transceiver
U27
MC6809/MC8T28
Linear Quad Bus Transceiver
U28
SN74LS08
TTL Quad 2-Input AND Gate
_ U29
SN74LS08
TTL Quad 2-Input AND Gate
MCM 2114-45 NMOS IK X 4 Static RAMS
U30 _ U40 U50***
U31 U41 ; U51
U32 _ U42*** . U52
U33*** U43 U53
U34 ' U44*** U54
U35*** U45 U55
U36 U46 U56
U37 U47 U57
U38 , U48*** - U58
U39 U49 U59
*** These memories are required for the minimal system.
MicroChroma 68 Assembly Parts List (Continued)
Miscellaneous Components
Ref Des Description
_ SI Momentary SPDT (Break)
S2 Momentary SPST (Reset)
_ S3 DPDT Switch (60dB 9 RF)
. Yl 3.579545 MHz Crystal
_ Ql 2N2222A Transistor
Cherry "PRO" Keyboard (Cherry P/N B70-05AB) or equivalent
with 24 pin header compatible with Jl
LI .luH adjustable Inductor
Tl 75 to 300 Matching Transformer
P2 Phone plug with compatible RF interconnect cable
P3 Phono plug with compatible audio interconnect cable
____ P4 Phono plug with compatible audio interconnect cable
Vestigal Sideband Filter tuned to pass desired channel frequency.
PCB ** MicroChroma 68 Printed Circuit Board (Motorola P/N SCPR0M02PCB)
Dl IN914 Signal Diode
_D2 IN914 Signal Diode
** Included in MicroChroma 68 Kit (Motorola P/N SCPR0M02)
DEAR MICROCHROMA 68 PURCHASER:
A USERS MANUAL CONTAINING THE SOURCE LISTING FOR TVBUG,
AND USEFUL APPLICATIONS HARDWARE AND SOFTWARE WILL BE
AVAILABLE SHORTLY. TO ENSURE THAT YOU RECEIVE YOUR COPY
AS SOON AS IT IS AVAILABLE, SEND IN THE BOTTOM HALF OF
THIS SHEET. IF YOU EXPERIENCE ANY PROBLEM OR WISH TO
SHARE OTHER USEFUL INFORMATION, CALL THE "MICROCHROMA
HOTLINE" (512) 928-6878.
TO: Motorola Mi crocomponent Applications
MS F2605 Attn: MicroChroma 68
3501 Ed Bluestein Blvd.
Austin, Texas 78721
SIRS: PLEASE SEND THE TVBUG APPLICATIONS MANUAL TO;
NAME
ADDRESS
CIRY
STATE
ZIP CODE
MOTOROLA INC. Integrated Circuits Division
3501 ED BLUSTEIN BLVD., AUSTIN, TEXAS 78721
